1. Elements were classified as metals and non-metals based on their _______.
(A). properties
(B). physical states
(C). atomic numbers
(D). atomic weights
2. Which Group is on the extreme right of the periodic table and contains inert gases.
(A). Group 9
(B). Group 17
(C). Group 18
(D). Group 16
3. Newlands’ periodic table did not include which gases as they were not discovered.
(A). inert
(B). real
(C). ideal
(D). poisonous
4. Modern periodic table is divided into how many blocks.
(A). six
(B). four
(C). eight
(D). two
5. Elements present at the bottom of the periodic table are called as
(A). f-block elements
(B). p-block elements
(C). d-block elements
(D). s-block elements
6. In a period, atomic radius generally ______.
(A). decreases from right to left
(B). decreases from left to right
(C). increases from left to right
(D). remains same
7. Which among the following is a metalloid.
(A). Boron
(B). Helium
(C). Calcium
(D). Radon
8. Mendeleev’s periodic law is based on ______.
(A). atomic number
(B). atomic mass
(C). valency
(D). atomic size
9. Rare gases are
(A). mono atomic
(B). di atomic
(C). tri atomic
(D). None of above
10. What among following is used to produce artificial rain?
(A). copper oxide
(B). silver oxide
(C). silver iodide
(D). silver nitrate
Answers will be provided soon..
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