Calcium oxide reacts vigorously with water to produce slaked lime.
$CaO (s) + H_{2} O (l) \to Ca {(OH)}_{2} (aq)$

This reaction can be classified as:

(A) Combination reaction
(B) Exothermic reaction
(C) Endothermic reaction
(D) Oxidation reaction

Which of the following is a correct option?

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Solution

The correct answer is option (D).

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The process of respiration is :

(a) an oxidation reaction which is endothermic

(b) a reduction reaction which is exothermic

(d) an oxidation reaction which is exothermic

Question 9

Solid calcium oxide reacts vigorously with water to form calcium hydroxide accompanied by liberation of heat. This process is called slaking of lime. Calcium hydroxide dissolves in water to form its solution called lime water. Which among the following is (are) true about slaking of lime and the solution formed?

(i) It is an endothermic reaction
(ii) It is an exothermic reaction
(iii) The pH of the resulting solution will be more than seven
(iv) The pH of the resulting solution will be less than seven

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (iii) and (iv)

Q. Calcium reacts vigorously with water to produce slaked lime. This reaction can be classified as:
I. Combination Reaction
II. Endothermic Reaction
III. Exothermic Reaction

Q. Calcium reacts vigorously with water to produce slaked lime. This reaction can be classified as:
I. Combination Reaction
II. Endothermic Reaction
III. Exothermic Reaction
IV. Decomposition Reaction
V. Double decomposition Reaction

Calcium oxide reacts vigorously with water to produce slaked lime CaO(s)+H2O(l)→Ca(OH)2(aq) this reaction can be classified as:

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Calcium oxide reacts vigorously with water to produce slaked lime.​ CaO(s) + H2O(l) → Ca(OH)2(aq) This reaction can be classified as:​ (A) Combination reaction (B) Exothermic reaction​ (C) Endothermic reaction (D) Oxidation reaction​ Which of the following is a correct option?​

The correct answer is option (D).

Calcium oxide reacts vigorously with water to produce slaked lime.
$CaO (s) + H_{2} O (l) \to Ca {(OH)}_{2} (aq)$

This reaction can be classified as:

(A) Combination reaction
(B) Exothermic reaction
(C) Endothermic reaction
(D) Oxidation reaction

Which of the following is a correct option?