Chemistry test for free
Free Chemistry Online Practice Test
Free Online Chemistry Test Practice and Preparation Test
1. Most of the fuels are
(a) Carbon compounds with sulphur
(b) Nitrogen compounds with carbon
(c) Carbon compounds with hydrogen
(d) None of these
Ans. (c)
2. When steam is passed over hot coke, it produces
(a) Producer gas
(b) Synthesis gas
(c) Tear gas
(d) Coal gas
Ans. (b)
3. Producer gas is a mixture of
(a) Carbon monoxide and nitrogen gas
(b) Carbon monoxide and hydrogen gas
(c) Carbon monoxide and w4r vapor
(d) Carbon monoxide and nitrous oxide
Ans. (a)
4. The property of an atom to form a bond with itself is known as
(a) Isomerism
(b) Catenation
(c) Allotropy
(d) None of these
Ans. (b)
5. A hydrocarbon is
(a) a compound containing carbon, hydrogen and oxygen
(b) is sodium hydrogen carbonate
(c) Compound containing carbon and hydrogen only’
(d) a derivative of benzene
Ans. (c)
6. The formula of tetrachloro methane is
(a) CC1H3
(b) CCl2
(c) CHC13
(d) CCI4
Ans. (d)
7. Which of the following gas is known as illuminating gas?
(a) Ethane
(b) Ethene
(c) Ethyne
(d) Propane
Ans. (c)
8. Which of the following does not give a positive test with alkaline solution of potassium permanganate?
(a) GWH
(b) C6H12
(c) C10H18
(d) C10H20
Ans. (a)
9. The residue left in destructive distillation of coal is
(a) Charcoal
(b) Coke
(c) Coaltar
(d) Coal gas
Ans. (b)
10. The fraction of petroleum used as jet fuel is
(a) Petrol
(b) Kerosene
(c) Diesel
(d) Alcohol
Ans. (b)
Tuesday, June 21, 2011
Friday, June 3, 2011
Free Online chemistry Practice test
Free Online chemistry Practice test
Free online chemistry practice test for all entrance exams
Free Online Chemistry Sample Papers Practice and Preparation Test
1. The valency of a phosphate ion is
(a) —l
(b) —2
(c) +3
(d) —3
Ans. (b)
2. Which of the following is acidic in nature?
(a) Apple juice
(b) Soap solution
(c) Slaked lime
(d) Lime
Ans. (a)
3. When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained and the sulphuric acid so formed remains in the solution. The reaction is an example o
(a) a combination reaction
(b) a displacement reaction
(c) a decomposition reaction
(d) a double decomposition reaction
Ans. (d)
4, Which of the following acids is present in sour milk?
(a) Glycolic acid
(b) Lactic acid
(c) Citrus acid
(d) Tartaric acid
Ans. (b)
5. Zinc can displace copper from copper sulphate solution because zinc is
(a) More reactive than copper
(b) Less reactive than copper
(c) More stable than copper
(d) Less stable than copper
Ans. (a)
6. Which of the following is a strong acid?
(a) Nitric acid
(b) Citrus acid
(c) Formic acid
(d) Lactic acid
Ans. (a)
7. Carbon dioxide reacts with carbon to form Carbon monoxide. This is an example of a
(a) Displacement reaction
(b) Double displacement reaction
(c) Combination reaction
(d) Decomposition reaction
Ans. (d)
8. The sharp pain caused by the sting of an ant is due to
(a) Malic acid
(b) Nitric acid
(c) Formic acid
(d) Lactic acid
Ans. (c)
9. Which of the following reactions is not a decomposition reaction?
(a) Starch is converted to glucose in our body
(b) Proteins are digested to amino aids
(c) Magnesium ribbon is burnt in ai
(d) Electricity is passed through water
Ans. (c)
10. Which of the following acids is used in car batteries?
(a) Nitric acid
(b) Hydrochloric acid
(c) Sulphuric acid
(d) Carbonic acid
Ans. (c)
11. Which of the following statement is incorrect?
(a) Metals like Cu, Ag, Au cannot displace H from acids
(b) In reactivity series metals are arranged in order of increasing reactivity
(c) Silver cannot displace Cu form Cu(NO3) 2
(d) Zinc displaces Cu from CuSO4
Ans. (b)
12. Milk of magnesia is an
(a) Acid
(b) Ant acid
(c) Alkali
(d) Rock salt
Ans. (b)
13. Which type of salts are stored in air tight containers
(a) Anhydrous
(b) Hydrated
(c) Dehydrated
(d) Deliquescence
Ans. (d)
14. The substance that looses electrons is called as
(a) Oxidizing agent .
(b) Reducing agent
(c) Catalyst
(d) None of above
Ans. (b)
15. Which of the following statement is correct?
(a) Oxidation involves gain of electron
(b) Substance which is reduced is reducing agent
(c) Exothermic process involves absorption of heat
(d) Oxidation involves loss of electrons
Ans. (d)
16. Which of the following reaction is not endothermic in nature?
(a) Breaking of bonds
(b) Digestion of food
(c) Combustion of Carbon
(d) Evaporation of water
Ans. (c)
17. Basicity of acetic acid is
(a) 4
(b) 3
(c) 1
(d) 2
Ans. (c)
18. Which of following is fast reaction?
(a) Reaction between H2 and O2 to form H2O
(b) Reaction between acid and base to form salt and water
(c) Hydrolysis of ester
(d) Hydrolysis of sugar to glucose
Ans. (b)
19. When marble chips are treated with HCI , which of the following gas is liberated?
(a) CO2
(b) O2
(c) CO
(d) NO2
Ans. (a)
20. Which of the following is not a property of acids?
(a) All acids have a sour taste
(b) Acids turn blue litmus red
(c) Acids turn red litmus blue
(d) All acids form H ions in water
Ans. (c)
Free online chemistry practice test for all entrance exams
Free Online Chemistry Sample Papers Practice and Preparation Test
1. The valency of a phosphate ion is
(a) —l
(b) —2
(c) +3
(d) —3
Ans. (b)
2. Which of the following is acidic in nature?
(a) Apple juice
(b) Soap solution
(c) Slaked lime
(d) Lime
Ans. (a)
3. When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained and the sulphuric acid so formed remains in the solution. The reaction is an example o
(a) a combination reaction
(b) a displacement reaction
(c) a decomposition reaction
(d) a double decomposition reaction
Ans. (d)
4, Which of the following acids is present in sour milk?
(a) Glycolic acid
(b) Lactic acid
(c) Citrus acid
(d) Tartaric acid
Ans. (b)
5. Zinc can displace copper from copper sulphate solution because zinc is
(a) More reactive than copper
(b) Less reactive than copper
(c) More stable than copper
(d) Less stable than copper
Ans. (a)
6. Which of the following is a strong acid?
(a) Nitric acid
(b) Citrus acid
(c) Formic acid
(d) Lactic acid
Ans. (a)
7. Carbon dioxide reacts with carbon to form Carbon monoxide. This is an example of a
(a) Displacement reaction
(b) Double displacement reaction
(c) Combination reaction
(d) Decomposition reaction
Ans. (d)
8. The sharp pain caused by the sting of an ant is due to
(a) Malic acid
(b) Nitric acid
(c) Formic acid
(d) Lactic acid
Ans. (c)
9. Which of the following reactions is not a decomposition reaction?
(a) Starch is converted to glucose in our body
(b) Proteins are digested to amino aids
(c) Magnesium ribbon is burnt in ai
(d) Electricity is passed through water
Ans. (c)
10. Which of the following acids is used in car batteries?
(a) Nitric acid
(b) Hydrochloric acid
(c) Sulphuric acid
(d) Carbonic acid
Ans. (c)
11. Which of the following statement is incorrect?
(a) Metals like Cu, Ag, Au cannot displace H from acids
(b) In reactivity series metals are arranged in order of increasing reactivity
(c) Silver cannot displace Cu form Cu(NO3) 2
(d) Zinc displaces Cu from CuSO4
Ans. (b)
12. Milk of magnesia is an
(a) Acid
(b) Ant acid
(c) Alkali
(d) Rock salt
Ans. (b)
13. Which type of salts are stored in air tight containers
(a) Anhydrous
(b) Hydrated
(c) Dehydrated
(d) Deliquescence
Ans. (d)
14. The substance that looses electrons is called as
(a) Oxidizing agent .
(b) Reducing agent
(c) Catalyst
(d) None of above
Ans. (b)
15. Which of the following statement is correct?
(a) Oxidation involves gain of electron
(b) Substance which is reduced is reducing agent
(c) Exothermic process involves absorption of heat
(d) Oxidation involves loss of electrons
Ans. (d)
16. Which of the following reaction is not endothermic in nature?
(a) Breaking of bonds
(b) Digestion of food
(c) Combustion of Carbon
(d) Evaporation of water
Ans. (c)
17. Basicity of acetic acid is
(a) 4
(b) 3
(c) 1
(d) 2
Ans. (c)
18. Which of following is fast reaction?
(a) Reaction between H2 and O2 to form H2O
(b) Reaction between acid and base to form salt and water
(c) Hydrolysis of ester
(d) Hydrolysis of sugar to glucose
Ans. (b)
19. When marble chips are treated with HCI , which of the following gas is liberated?
(a) CO2
(b) O2
(c) CO
(d) NO2
Ans. (a)
20. Which of the following is not a property of acids?
(a) All acids have a sour taste
(b) Acids turn blue litmus red
(c) Acids turn red litmus blue
(d) All acids form H ions in water
Ans. (c)
Free chemistry Objective Questions With Answers
Free chemistry Objective Questions With Answers
10+2 chemistry solved objective MCQ Questions
Free Chemistry Online Practice Test
1. Hydrogen has high ionisation energy than alkali metals because it has:
(a) ionic bond
(b) covalent bond
(c) large size
(d) small size
Ans. (d)
2. The average osmotic pressure of human blood is 7.8 bar at 37°C. What is the concentration of an aqueous NaC1 solution that could be used in the blood stream?
(a) 0.16 mol/L
(b) 0.31 mol/L
(c) 0.60 mol/L
(d) 0.45 mol/L
Ans. (b)
3. Among the following the dissociation constant is highest for:
(a) C6H5OH
(b) C6H5CH2OH
(c) CH3C = CH
(d) CH3NH+3Cl-
Ans. (d)
4. The pH of a solution is zero. The solution is:
(a) M/2HCl
(b) M/2H2SO4
(c) M/10H2SO4
(d) M/10HCI
Ans. (b)
5. In the reaction of p-chloro toluene with KNH2 in liq.NH3, the major product is
(a) p-chloro aniline
(b) p-toluidine
(c) o-toluidine
(d) m-toluidine
Ans. (d)
6. The hydration energy of Mg2+ is larger than that of:
(a) Na+
(b) Mg3+
(c) Al3+
(d) Be2+
Ans. (a)
7. If the enthalpy of vaporization of water is 186.5 kJ mol-1, the enthalpy of its vaporization will be:
(a) 2.0 JK-1 mol-1
(b) 1.5 JK-1mol-1
(c) 1.0 JK-1 mol-1
(d) 0.5 JK-1 mol-1
Ans. (d)
8. Which of the following ion is not stable?
(a) (CH3)3C+
(b) CH3CH
(c) (CH3)2CH+
(d) C6H5CH
Ans. (a)
9. In the crystal of which of the following compounds would you expect maximum distance between centres of cations and anions:
(a) LiI
(b) CsF
(c) CsI
(d) LiF
Ans. (b)
10. If a is the initial concentration of a substance which reacts according to zero order kinetics and k is rate constant, the time for the reaction to go to completion is:
(a) k/a
(b) a/k
(c) 2k/a
(d) 2/ka
Ans. (b)
11. Which of the following configuration represents atoms of elements having the highest second ionisation energy?
(a) 1s22s22p63s2
(b) 1s22s22p63s-1
(C) 1s22s22p6
(d) 1s22s22p4
Ans. (b)
12. The reduction electrode potential, E of 0.1 m solution of M+ ions [E°RP = -2.36V] is:
(a) + 2.41
(b) - 2.41
(c) + 4.82
(d) -4.82
Ans. (b)
13. In some region of space around nucleus, 2 = 0, this region is called:
(a) orbital
(b) orbit
(c) nucleus
(d) spherical node
Ans. (d)
14. Which of the following is a paramagnetic complex ion?
(a) [Ni (CN)4]2-
(b) [NiCl4]2-
(c) [Co(NH3 )6]3+
(d) Fe(CN)6]4-
Ans. (b)
15. Which of the following has highest entropy?
(a) Mercury
(b) Water
(c) Hydrogen
(d) Glycerin
Ans. (c)
16. The resistance of 0.1 N solution of a salt is found to be 2.5 x 106 ohms. The equivalent conductance of solution is:
(cell constant = 1.15 cm-1)
(a) 3.8
(b) 4.6
(c) 6.4
(d) 7.6
Ans. (b)
17. The volume strength of 1.5 N H2 O2 solution is:
(a) 4.8
(b) 6.8
(c) 8.4
(d) 8.8
Ans. (c)
18. Grignard reagent on treatment with acetone produces
(a) acetaldehyde
(b) acetic acid
(c) secondary alcohol
(d) tertiary alcohol
Ans. (d)
19. In the long form of periodic table all the non metals are placed in
(a) s-block
(b) p-block
(c) d-block
(d) f-block
Ans. (b)
20. The largest number of molecule is in:
(a) 28 g of CO2
(b) 54 g of N2O5
(c) 34 g of H2O
(d) 46 g of CH3OH
Ans. (c)
21. Which statement is correct?
(a) All halogens forms oxyacids
(b) Only iodine forms oxyacids
(c) Only chlorine and bromine forms oxyacids
(d) All halogens except fluorine forms oxyacids
Ans. (a)
22. Which of the following gases will have highest rate of diffusion?
(a) CO2
(b) NH3
(c) O2
(d) N2
Ans. (b)
23. Zeeman effect explains splitting of lines in:
(a) magnetic field
(b) electric field
(c) both (a) and (b)
(d) none of these
Ans. (a)
24. Tautomerism is exhibited by:
(a) (CH3)2NH
(b) (CH3)3CNO
(c) RCH2NO2
(d) R3CNO2
Ans. (c)
25. Philosopher’s wool is:
(a) ZnCl2
(b) ZnS
(c) Zn (NO3)2
(d) Zn0
Ans. (d)
26. Hydrolysis of sucrose is known as:
(a) inversion
(b) saponification
(c) hydration
(d) estérification
Ans. (a)
27. Which one of the following statement is correct?
(a) Phenol is more acidic than carbonic acid
(b) Phenol is less acidic than ethyl alcohol
(c) Phenol is more acidic than ethanol
(d) Phenol is more acidic than acetic acid
Ans. (c)
28. Which statement is correct for hydrogen?
(a) It has a very high IP
(b) It is always col1ected at cathode
(c) It can form bonds in + 1 as well as -1 oxidation state
(d) It has same electro negativity as halogens
Ans. (c)
29. The osmotic pressure at 17°C of an aqueous solution containing 1.75 g of sucrose per
150 mL solution is:
(a) 0.08 atm
(b) 8.1 atm
(c) 0.8 atm
(d) 9.1 atm
Ans. (c)
30. Distribution law cannot be applicable for a system in which 12 distributed in between:
(a) water and alcohol
(b) water and benzene
(c) water and chloroform
(d) water and acetone
Ans. (c)
31. Mullikan’s oil drop method is used to determine:
(a) velocity of electron
(b) mass of electron
(c) charge of electron
(d) elm ratio of electron
Ans. (c)
21. The common donor atom in ligands:
(a) nitrogen
(b) oxygen
(c) arsenic
(d) both (a) and (b)
Ans. (d)
33. Steam distillation is used for the purification of:
(a) covalent compounds
(b) electrovalent compounds
(c) co-ordinate compounds
(d) volatile compounds
Ans. (d)
34. In which of the following co-ordination compounds, the central metal obeys the EAN rule?
(a) K3[Fe(CN)6]
(b) K4[Fe(CN)3]
(c) [Cu(NH4)2]SO4
(d) K4[Fe(CN)6]
Ans. (d)
35. Optical glass contains a high percentage of:
(a) Al2O3
(b) CeO2
(c) PbO
(d) B2O3
Ans. (b)
36. Which of the following is an unsaturated acid?
(a) Stearic
(b) Oleic
(c) Lauric
(d) Myristric
Ans. (b)
37. An example of associated colloid is:
(a) vegetable oil
(b) milk
(c) rubber latex
(d) soap solution
Ans. (d)
38. Which of the following is linear polymer?
(a) Glycogen
(b) Amylopectin
(c) Amylose
(d) Starch
Ans. (c)
39. The acid which reduces Fehling solution is:
(a) ethanoic acid
(b) methanoic acid
(c) propanoic acid
(d) butanoic acid
Ans. (b)
40. Which one of the following can be classified as Bronsted base?
(a) NO3-
(b) H3O
(c) CH3COOH
(d) NH4+
Ans. (a)
41. The mass of 112 cc of CH4 at STP is:
(a) 0.16g
(b) 0.8g
(c) 0.08 g
(d) 1.6 g
Ans. (c)
42. Which among the following species has the highest ionisation potential?
(a) B
(b) Li
(c) Ne
(d) F
Ans. (c)
43. The unit of quantity of electricity is:
(a) ohm
(b) ampere
(c) coulomb
(d) volt
Ans. (c)
44. When 8.3 g copper sulphate reacts with excess of potassium iodide then the amount of iodine liberated is
(a) 42.3 g
(b) 24.3 g
(c) 4.23 g
(d) 2.43 g
Ans. (c)
45. One gram equimolecular mixture of Na2CO3 and NaHCO3 is reacted with 0.1 N HCI. The mL of 0.1 N HC1 required to react completely with the above mixture is
(a) 15.78 mL
(b) 157.8 mL
(c) 198.4 mL
(d) 295.5 mL
Ans. (b)
10+2 chemistry solved objective MCQ Questions
Free Chemistry Online Practice Test
1. Hydrogen has high ionisation energy than alkali metals because it has:
(a) ionic bond
(b) covalent bond
(c) large size
(d) small size
Ans. (d)
2. The average osmotic pressure of human blood is 7.8 bar at 37°C. What is the concentration of an aqueous NaC1 solution that could be used in the blood stream?
(a) 0.16 mol/L
(b) 0.31 mol/L
(c) 0.60 mol/L
(d) 0.45 mol/L
Ans. (b)
3. Among the following the dissociation constant is highest for:
(a) C6H5OH
(b) C6H5CH2OH
(c) CH3C = CH
(d) CH3NH+3Cl-
Ans. (d)
4. The pH of a solution is zero. The solution is:
(a) M/2HCl
(b) M/2H2SO4
(c) M/10H2SO4
(d) M/10HCI
Ans. (b)
5. In the reaction of p-chloro toluene with KNH2 in liq.NH3, the major product is
(a) p-chloro aniline
(b) p-toluidine
(c) o-toluidine
(d) m-toluidine
Ans. (d)
6. The hydration energy of Mg2+ is larger than that of:
(a) Na+
(b) Mg3+
(c) Al3+
(d) Be2+
Ans. (a)
7. If the enthalpy of vaporization of water is 186.5 kJ mol-1, the enthalpy of its vaporization will be:
(a) 2.0 JK-1 mol-1
(b) 1.5 JK-1mol-1
(c) 1.0 JK-1 mol-1
(d) 0.5 JK-1 mol-1
Ans. (d)
8. Which of the following ion is not stable?
(a) (CH3)3C+
(b) CH3CH
(c) (CH3)2CH+
(d) C6H5CH
Ans. (a)
9. In the crystal of which of the following compounds would you expect maximum distance between centres of cations and anions:
(a) LiI
(b) CsF
(c) CsI
(d) LiF
Ans. (b)
10. If a is the initial concentration of a substance which reacts according to zero order kinetics and k is rate constant, the time for the reaction to go to completion is:
(a) k/a
(b) a/k
(c) 2k/a
(d) 2/ka
Ans. (b)
11. Which of the following configuration represents atoms of elements having the highest second ionisation energy?
(a) 1s22s22p63s2
(b) 1s22s22p63s-1
(C) 1s22s22p6
(d) 1s22s22p4
Ans. (b)
12. The reduction electrode potential, E of 0.1 m solution of M+ ions [E°RP = -2.36V] is:
(a) + 2.41
(b) - 2.41
(c) + 4.82
(d) -4.82
Ans. (b)
13. In some region of space around nucleus, 2 = 0, this region is called:
(a) orbital
(b) orbit
(c) nucleus
(d) spherical node
Ans. (d)
14. Which of the following is a paramagnetic complex ion?
(a) [Ni (CN)4]2-
(b) [NiCl4]2-
(c) [Co(NH3 )6]3+
(d) Fe(CN)6]4-
Ans. (b)
15. Which of the following has highest entropy?
(a) Mercury
(b) Water
(c) Hydrogen
(d) Glycerin
Ans. (c)
16. The resistance of 0.1 N solution of a salt is found to be 2.5 x 106 ohms. The equivalent conductance of solution is:
(cell constant = 1.15 cm-1)
(a) 3.8
(b) 4.6
(c) 6.4
(d) 7.6
Ans. (b)
17. The volume strength of 1.5 N H2 O2 solution is:
(a) 4.8
(b) 6.8
(c) 8.4
(d) 8.8
Ans. (c)
18. Grignard reagent on treatment with acetone produces
(a) acetaldehyde
(b) acetic acid
(c) secondary alcohol
(d) tertiary alcohol
Ans. (d)
19. In the long form of periodic table all the non metals are placed in
(a) s-block
(b) p-block
(c) d-block
(d) f-block
Ans. (b)
20. The largest number of molecule is in:
(a) 28 g of CO2
(b) 54 g of N2O5
(c) 34 g of H2O
(d) 46 g of CH3OH
Ans. (c)
21. Which statement is correct?
(a) All halogens forms oxyacids
(b) Only iodine forms oxyacids
(c) Only chlorine and bromine forms oxyacids
(d) All halogens except fluorine forms oxyacids
Ans. (a)
22. Which of the following gases will have highest rate of diffusion?
(a) CO2
(b) NH3
(c) O2
(d) N2
Ans. (b)
23. Zeeman effect explains splitting of lines in:
(a) magnetic field
(b) electric field
(c) both (a) and (b)
(d) none of these
Ans. (a)
24. Tautomerism is exhibited by:
(a) (CH3)2NH
(b) (CH3)3CNO
(c) RCH2NO2
(d) R3CNO2
Ans. (c)
25. Philosopher’s wool is:
(a) ZnCl2
(b) ZnS
(c) Zn (NO3)2
(d) Zn0
Ans. (d)
26. Hydrolysis of sucrose is known as:
(a) inversion
(b) saponification
(c) hydration
(d) estérification
Ans. (a)
27. Which one of the following statement is correct?
(a) Phenol is more acidic than carbonic acid
(b) Phenol is less acidic than ethyl alcohol
(c) Phenol is more acidic than ethanol
(d) Phenol is more acidic than acetic acid
Ans. (c)
28. Which statement is correct for hydrogen?
(a) It has a very high IP
(b) It is always col1ected at cathode
(c) It can form bonds in + 1 as well as -1 oxidation state
(d) It has same electro negativity as halogens
Ans. (c)
29. The osmotic pressure at 17°C of an aqueous solution containing 1.75 g of sucrose per
150 mL solution is:
(a) 0.08 atm
(b) 8.1 atm
(c) 0.8 atm
(d) 9.1 atm
Ans. (c)
30. Distribution law cannot be applicable for a system in which 12 distributed in between:
(a) water and alcohol
(b) water and benzene
(c) water and chloroform
(d) water and acetone
Ans. (c)
31. Mullikan’s oil drop method is used to determine:
(a) velocity of electron
(b) mass of electron
(c) charge of electron
(d) elm ratio of electron
Ans. (c)
21. The common donor atom in ligands:
(a) nitrogen
(b) oxygen
(c) arsenic
(d) both (a) and (b)
Ans. (d)
33. Steam distillation is used for the purification of:
(a) covalent compounds
(b) electrovalent compounds
(c) co-ordinate compounds
(d) volatile compounds
Ans. (d)
34. In which of the following co-ordination compounds, the central metal obeys the EAN rule?
(a) K3[Fe(CN)6]
(b) K4[Fe(CN)3]
(c) [Cu(NH4)2]SO4
(d) K4[Fe(CN)6]
Ans. (d)
35. Optical glass contains a high percentage of:
(a) Al2O3
(b) CeO2
(c) PbO
(d) B2O3
Ans. (b)
36. Which of the following is an unsaturated acid?
(a) Stearic
(b) Oleic
(c) Lauric
(d) Myristric
Ans. (b)
37. An example of associated colloid is:
(a) vegetable oil
(b) milk
(c) rubber latex
(d) soap solution
Ans. (d)
38. Which of the following is linear polymer?
(a) Glycogen
(b) Amylopectin
(c) Amylose
(d) Starch
Ans. (c)
39. The acid which reduces Fehling solution is:
(a) ethanoic acid
(b) methanoic acid
(c) propanoic acid
(d) butanoic acid
Ans. (b)
40. Which one of the following can be classified as Bronsted base?
(a) NO3-
(b) H3O
(c) CH3COOH
(d) NH4+
Ans. (a)
41. The mass of 112 cc of CH4 at STP is:
(a) 0.16g
(b) 0.8g
(c) 0.08 g
(d) 1.6 g
Ans. (c)
42. Which among the following species has the highest ionisation potential?
(a) B
(b) Li
(c) Ne
(d) F
Ans. (c)
43. The unit of quantity of electricity is:
(a) ohm
(b) ampere
(c) coulomb
(d) volt
Ans. (c)
44. When 8.3 g copper sulphate reacts with excess of potassium iodide then the amount of iodine liberated is
(a) 42.3 g
(b) 24.3 g
(c) 4.23 g
(d) 2.43 g
Ans. (c)
45. One gram equimolecular mixture of Na2CO3 and NaHCO3 is reacted with 0.1 N HCI. The mL of 0.1 N HC1 required to react completely with the above mixture is
(a) 15.78 mL
(b) 157.8 mL
(c) 198.4 mL
(d) 295.5 mL
Ans. (b)
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