Question

2
1
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1.
A solution of a substance 'X' is used for whitewashing.
(i) Name the substance X and write its formula.
(ii) Write the reaction of the substance X' named in (i) a
water.​

Answer 1

Answer:

(i) Substance X is Calcium Oxide whose solution we use in waterwhich is used for white washing. Theformula of substance X is Cao. (ii) Calcium oxide reacts vigorously withwater to produce slaked lime (calcium hydroxide) releasing a large amount of heat.