Question

A solution of a substance X is used for whitewashing.
(i) Name the substance X and write its formula.
(1) Write the reaction of the substance X named in (i) above with
water.
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Answer 1

Answer:

the substance X is CAO that is.. Carbon Oxide which is used for whitewashing.

When CAO reacts with water, then the reaction is

cao+h2o = ca(oh)2+h2...

means carbon oxide + water will give you carbon hydroxide(lime water) + hydrogen gas released

hope it helps you... plz mark me as brainliest

Answer 2

Answer:

(I) Calcium oxide (CaO)

(ii) CaO + H2O → Ca(OH)2