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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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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?
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Q. Solid calcium oxide reacts vigorously with water to form calcium hydroxide accompanied by liberation of heat. This process is called slaking of lime. Which among the following is (are) true about slaking of lime?
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Writing and Reading a Chemical Equations

Standard IX Chemistry

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