TNPSC Group 2 Study Material in Tamil and English - 1
Question: 1
Slaked lime means ___
(A) Calcium hydroxide
(B) Magnesium hydroxide
(C) Ammonium hydroxide
(D) Sodium hydroxide
Ans: A
Calcium hydroxide
Question: 2
Which of the following is a double salt?
(A) Potash alum
(B) Sodium zinc cyanide
(C) Sodium sulphate
(D) Lead chloride
Ans: A
Potash alum
Question: 3
Which of the following is an indicator?
(A) Sugar solution
(B) Hydrochloric acid
(C) Sodium hydroxide
(D) Phenolphthalein
Ans: D
Phenolphthalein
Question: 4
Which of the following is an alkali?
(A) Na HCL
(B) HCL
(C) NaOH
(D) CO
Ans: C
NaOH
Question: 5
Fruits like lemon and orange contain ___ acid.
(A) Citric
(B) Malic
(C) Lactic
(D) Tartaric
Ans: A
Citric
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