Which of the following is the most common kidney stone-forming compound?
(A) Calcium oxalate
(B) Magnesium oxide
(C) Sodium bicarbonate
(D) Magnesium citrate
In which of the following chlorine has + 1 oxidation number?
(A) Zinc chloride
(B) Chlorine
(C) Hypochlorous acid
(D) Hydrochloric acid
(A) oxygen
(B) hydrogen
(C) carbon
(D) sulphur
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
The gas used for artificial fruit ripening of green fruit is
(A) Ethane
(B) Ethylene
(C) Methane
(D) Acetylene
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