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Writing and Reading a Chemical Equations

Which of the ...

Question

Which of the following reactions is called slaking of lime?

A

C a C O_{3} \to C a O + C O_{2}

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B

C a O + 2 H C l \to C a C l_{2} + H_{2} O

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C

C a O + H_{2} O \to C a (O H)_{2} + h e a t

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D

C a C O_{3} + N a C l \to N a_{2} C O_{3} + C a C l_{2}

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Solution

The correct option is C $C a O + H_{2} O \to C a (O H)_{2} + h e a t$
Calcium oxide combines with limited amount of water to produce slaked lime. This process is called slaking of lime.
$C a O + H_{2} O \to C a (O H)_{2} + h e a t$
Thus the answer is option (c).

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Writing and Reading a Chemical Equations

Standard IX Chemistry

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