Which of the following statements is true about Ca(OH)2?
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a
It is used in the preparation of bleaching powder
b
It is a light blue solid
c
It does not possess disinfectant property
d
It is used to the manufacture of cement
answer is A.
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Detailed Solution
Slaked Lime Ca(OH)2 is used in the preparation of bleaching powder2CaOH2+2Cl2→CaCl2+Ca(OCl)2Bleaching powder+2H2O → It is a white amorphous powder→ Ca(OH)2 possess disinfectant propertyHence it is used in white washing→ It is not used in the manfacture of cement