Which of the following is a compound?
(A) Ammonia
(B) ozone
(C) Air
(D) mercury
Define Air?
(A) compound
(B) Mixture
(C) Liquid
(D) solution
Which of the following is neither an element nor a compound?
(A) mercury
(B) water
(C) Air
(D) sodium chloride
The following is a compound?
(A) brass
(B) Steel
(C) sand
(D) Diamond
What is gunpowder?
(A) compound
(B) Mixture
(C) Liquid
(D) none of these
What is bleaching powder?
(A) Elements
(B) compound
(C) Mixture
(D) solution
What is the fourth state of matter?
(A) Plasma
(B) Liquid
(C) gas
(D) solid
What is Stainless Steel?
(A) compound
(B) Elements
(C) solid
(D) Mixture
Which of the following substances does not contain oxygen?
(A) Kerosene
(B) glass
(C) sand
(D) Cement
"Every matter in the universe is made up of very fine particles", who said this for the first time?
(A) Rutherford
(B) Dalton
(C) Kanad
(D) none of these
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