Chemistry General Knowledge Questions and Answers: Chemistry GK
'Every substance in the world is made up of very fine particles.' Who said this first?
(A) Dalton
(B) Kanad
(C) Rutherford
(D) Avogadro
Correct Answer : A
Oxygenation is a chemical reaction in which
(A) The electron is discarded.
(B) Oxygen is a combination.
(C) The ratio of the positive group increases.
(D) All of the above
Correct Answer : D
Nowadays yellow lamps are being used in abundance in street lights. Which of the following gas are used in these lamps?
(A) Sodium
(B) Neon
(C) Hydrogen
(D) Nitrogen
Correct Answer : A
A catalyst is a substance that_________ the velocity of a chemical reaction.
(A) Increases
(B) Decreases
(C) Changes
(D) None of these
Correct Answer : C
The maximum number of electrons that can be accommodated in M shell is:
(A) 8
(B) 32
(C) 18
(D) 2
Correct Answer : C
Which among the following noble gas has highest molar mass?
(A) Kr
(B) ne
(C) Ar
(D) Xe
Correct Answer : D
What are the main components of Brass Alloy?
(A) Copper and Zinc
(B) Copper, Zinc and Nickel
(C) Copper and Strontium
(D) Copper and Nickel
Correct Answer : A
Permanent hardness of water may be removed by the addition of
(A) sodium carbonate
(B) alum
(C) potassium permanganate
(D) lime
Correct Answer : A
Which of the following is the most common kidney stone-forming compound?
(A) Calcium oxalate
(B) Magnesium oxide
(C) Sodium bicarbonate
(D) Magnesium citrate
Correct Answer : A
If the pH value of a substance is lower than 7, it would be considered as–
(A) Neutral
(B) Base
(C) Acid
(D) Ion
Correct Answer : C
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