Question 1.2

A solution of a substance ‘X’ is used for white washing.

Write the reaction of the substance ‘X’ named above with water.

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Solution

The substance 'X' is calcium oxide (quick lime). It reacts vigorously with water to form calcium hydroxide (slaked lime). The reaction occurs as follows:

$CaO(s) + H_{2} O(l) \to {Ca(OH)}_{2} (aq)$

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Q. A solution of a substance 'X' is used for white washing.

Write the reaction of the substance 'X' named in given with water.

A solution of a substance ‘X’ is used for white washing.

(i) Name the substance ‘X’ and write its formula.

(ii) Write the reaction of the substance ‘X’ named in (i) above with water.

A solution of a substance 'X' is used for white washing.
1. Name the substance 'X' and write its formula.
2. Write the reaction of the substance 'X' named in (i) above with water.[2 MARKS]

State whether the given statement is true or false:

A solution of a substance

X

is used for white washing. The reaction of the substance

X

is with water is:

C a O (s) C a l c i u m o x i d e + H_{2} O (l) W a t e r \to C a (O H)_{2} (a q) C a l c i u m h y d r o x i d e

Q. Question 1.1
A solution of a substance ‘X’ is used for white washing.
(i) Name the substance ‘X’ and write its formula.

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Question 1.2 A solution of a substance ‘X’ is used for white washing. Write the reaction of the substance ‘X’ named above with water.

The substance 'X' is calcium oxide (quick lime). It reacts vigorously with water to form calcium hydroxide (slaked lime). The reaction occurs as follows: CaO(s)+H2O(l)→Ca(OH)2(aq)

Question 1.2

A solution of a substance ‘X’ is used for white washing.

Write the reaction of the substance ‘X’ named above with water.

The substance 'X' is calcium oxide (quick lime). It reacts vigorously with water to form calcium hydroxide (slaked lime). The reaction occurs as follows:

$CaO(s) + H_{2} O(l) \to {Ca(OH)}_{2} (aq)$