TNPSC Group 2 Study Material in Tamil and English - 1
Slaked lime means ___
(A) Calcium hydroxide
(B) Magnesium hydroxide
(C) Ammonium hydroxide
(D) Sodium hydroxide
Which of the following is a double salt?
(A) Potash alum
(B) Sodium zinc cyanide
(C) Sodium sulphate
(D) Lead chloride
Which of the following is an indicator?
(A) Sugar solution
(B) Hydrochloric acid
(C) Sodium hydroxide
Which of the following is an alkali?
(A) Na HCL
Fruits like lemon and orange contain ___ acid.
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