The P Block Elements - Result Question 89
####92. Bleaching powder is obtained by the action of chlorine gas and
[1988]
(a) dilute solution of $Ca(OH)_2$
(b) concentrated solution of $Ca(OH)_2$
(c) dry $CaO$
(d) dry slaked lime
Topic 4: Noble Gases
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Solution:
- (d) $Cl_2$ gas reacts with dry slaked lime, $Ca(OH)_2$ at $40^{\circ} C$ to give bleaching powder
$ Ca(OH)_2+Cl_2 \to CaOCl_2+H_2 O $
