Which one of the following is an alkali?

(A) Water
(B) Vinegar
(C) Lemon juice
(D) Slaked lime

Q. What is the chemical name of Slaked lime?
(A) Calcium Hydroxide
(B) Calcium Carbonate
(C) Calcium Dioxide
(D) None of these

Q. What is the chemical formula of Slaked lime?
(A) CaCl₂
(B) Ca(OH)₂
(C) CaCO₂
(D) None of these

Answers:
1. (D) Slaked lime
2. (A) Calcium Hydroxide
3. (B) Ca(OH)₂