How can a solution of lime water be prepared in the laboratory?
The lime water is prepared by dissolving calcium oxide in water and decanting the supernatent liquid.
Type 1 for true and 0 for flase

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Solution

The lime water is prepared by dissolving calcium oxide in water and decanting the supernatent liquid. The reaction is referred to as slaking of lime
$C a O (s)$ + $H_{2} O$ (l) $\to$ $C a (O H)_{2}$ (aq) + Heat

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Q. A solution prepared by dissolving 2.8 gm of lime.

C a O

in enough water to make 1 00 L of lime water

(C a (O H)_{2} (a q .))

. If solubility of

C a (O H)_{2}

in water is 1 48 gm. The

p H

of the solution obtained will be:
[log 2 = 0.3, Atomic masses are

C a = 40, O = 16, H = 11

]

Q. Question 53
Look at the figure and answer the following questions.

(a) What change would you observe in the calcium Hydroxide solution taken in tube B?

(b) Write the reaction involved in test tube A and B respectively

(d) How can a solution of lime water be prepared in the laboratory?

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. Solid calcium oxide reacts vigorously with water to form calcium hydroxide accompanied by the 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.

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?

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How can a solution of lime water be prepared in the laboratory? The lime water is prepared by dissolving calcium oxide in water and decanting the supernatent liquid.Type 1 for true and 0 for flase

The lime water is prepared by dissolving calcium oxide in water and decanting the supernatent liquid. The reaction is referred to as slaking of limeCaO(s) + H2O (l) → Ca(OH)2 (aq) + Heat

How can a solution of lime water be prepared in the laboratory?
The lime water is prepared by dissolving calcium oxide in water and decanting the supernatent liquid.
Type 1 for true and 0 for flase

The lime water is prepared by dissolving calcium oxide in water and decanting the supernatent liquid. The reaction is referred to as slaking of lime
$C a O (s)$ + $H_{2} O$ (l) $\to$ $C a (O H)_{2}$ (aq) + Heat