Practice Objective Chemistry Test on Periodic Table

Practice Objective Chemistry Test on Periodic Table
Periodic Table of the Elements Quiz - Test Your Chemistry


1. An element has 12 neutrons in its nucleus. To which group of the periodic table it will belong?
(a) 1
(b) 2
(c) 6
(d) Impossible to predict
Ans. (d)


2. The element with atomic number 9 resembles in properties with the element having atomic number
(a) 19
(b) 17
(c) 36
(d) 27
Ans. (b)

3. Atomic number and not the atomic weight is the fundamental property of an element was enunciated by?
(a) Dalton
(b) Bohr
(c) Mosley
(d) Mendeleev
Ans. (c)


4. Elements in a period have same
(a) Number of valence electrons
(b) Valency
(c) Number of shells
(d) Volume
Ans. (c)


5. Elements belonging to the same group have similar properties because
(a) They have similar electronic configuration of the outermost shell
(b) Their atomic numbers go on increasing as we move down the group
(c) all of them the metallic elements
(d) None of the above
Ans. (a)


6. The atoms of elements belonging to the same group of periodic table have the same
(a) Number of protons
(b) Number of electrons
(c) Number of neutrons
(d) Number of electrons in the outermost shell
Ans. (d)


7. Which of the following is the correct order of relative sizes?
(a) I->I+>I
(b) I->I+>I+
(c) I>I+>I-
(d) I+>I->I
Ans. (b)


8. On moving horizontally across a period, the number of electrons in the outermost shell increases from- to-
(a) 2, 8
(b) 2, 18
(c) 1, 8
(d) 1, 18
Ans. (c)



9. Which of the following hydroxides is most basic?
(a) Be(OH)2
(b) Ba(OH)2
(c) Ca(OH)2
(d) Mg(OH)2
Ans. (b)


10. The element with smallest size in the 4th period is
(a) Chlorine
(c) Fluorine
(b) Iodine
(d) Bromine
Ans. (d)


11. The most metallic element in the fifth period is
(a) Silver
(b) Rubidium
(c) Gold
(d) Rhodium
Ans. (b)






12. Element ‘A’ has Electronic configuration 2,7 ‘B’ has configuration 2,8,6, ‘C’ has configuration 2,8,8 while ‘D’ has 2,8,7. Which element will show similar chemical properties?
(a) A and C
(b) A and D
(c) B and C
(d) B and D
Ans. (b)


13. Law of Triad was proposed by
(a) Newland
(b) Gay Lussac
(c) Mendeleev
(d) Dobereiner
Ans. (d)

14. Third period of the periodic tables contains the following number elements.
(a) 2
(b) 18
(c) 8
(d) 32
Ans. (c)


15. The element with electronic configuration 2, 8,6is
(a) Metallic with valency 2
(b) Non-metallic with valency 2
(c) Metalloid with valency 2
(d) None of these
Ans. (b)