Calcium reacts vigorously with water to produce slaked lime.

Identify the correct classification:
I. Combination reaction
II. Endothermic reaction
III. Exothermic reaction

I only

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I and II

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I and III

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III only

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Solution

The correct option is C I and III

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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
IV. Decomposition Reaction
V. Double decomposition Reaction

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 :
(i) Combination reaction
(ii) Exothermic reaction
(iii) Endothermic reaction
(iv) Oxidation reaction
Which of the following is a correct option?

Q. Carbon reacts vigorously with oxygen to produce carbon dioxide.

This reaction can be classified as:

C (g) + O_{2} (g) \to {CO}_{2} (g) + Heat

I. Combination Reaction
II. Endothermic Reaction
III. Exothermic Reaction
IV. Decomposition Reaction
V. Double decomposition Reaction

Q. Slaking of lime is
(i) an endothermic reaction
(ii) an exothermic reaction
(iii) a combination reaction
(iv) a decomposition reaction

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Calcium reacts vigorously with water to produce slaked lime.​ Identify the correct classification: I. Combination reaction​ II. Endothermic reaction​ III. Exothermic reaction​

The correct option is C I and III​

Calcium reacts vigorously with water to produce slaked lime.

Identify the correct classification:
I. Combination reaction
II. Endothermic reaction
III. Exothermic reaction

The correct option is C I and III