As you know we see colorful changes around us pretense to chemical responses. Chemistry GK is an important branch of General Science. Through the study of chemistry, we learn how matter is formed, and the parcels of the substance. In our diurnal, we use numerous effects which are made by chemical response. Under the General Science section, chemistry, Biology, and drugs GK Questions are asked in competitive examinations.
Then, I'm participating in the Chemistry GK Questions and Answers for forthcoming competitive examinations. Numerous questions are asked in Competitive examinations related to Chemistry GK, Physics GK, and Biology GK under the General Science section. These Chemistry GK Questions are veritably important for forthcoming competitive examinations like SSC, Railway, etc.
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Q : German silver used for making utensils is an alloy of
(A) copper silver nickel
(B) copper zinc nickel
(C) copper zinc aluminum
(D) copper nickel aluminum
Which is the purest form of iron?
(A) Steel
(B) Cast iron
(C) Pig iron
(D) Wrought iron
Water gas is the mixture of
(A) carbon dioxide and hydrogen
(B) carbon monoxide and hydrogen
(C) carbon dioxide and nitrogen
(D) carbon monoxide and nitrogen bear
Impure camphor is purified by
(A) sublimation
(B) fractional crystallization
(C) fractional distillation
(D) steam distillation
What is the role of a positive catalyst in a chemical reaction?
(A) It increases the rate of reaction
(B) It decreases the rate of reaction
(C) It increases the yield of the products
(D) It provides better purity of the products
Washing soda is the common name for
(A) Calcium carbonate
(B) Sodium carbonate
(C) Calcium bicarbonate
(D) Sodium bicarbonate
Permanent hardness of water may be removed by the addition of
(A) sodium carbonate
(B) alum
(C) potassium permanganate
(D) lime
In which of the following chlorine has + 1 oxidation number?
(A) Zinc chloride
(B) Chlorine
(C) Hypochlorous acid
(D) Hydrochloric acid
The air is the example of:
(A) The solution of solid in the gas
(B) The solution of gas in the gas
(C) The solution of liquid in the gas
(D) The solution of liquid in the solid
What is the mass number of an element, the atom of which contains two Protons, two neutrons and two electrons?
(A) 2
(B) 4
(C) 6
(D) 8
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