Question

A solution of a substance is used for whitewashing.
O Name the substance X and write its formula
0) Wine the reaction of the substance X named in (i) above with​

Answer 1

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A solution of a substance ‘X’ is used for white washing.

(i) Name the substance ‘X’ and write its formula.

(ii) Write the reaction of the substance ‘X’ named in (i) above with water.

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(i)The substance ‘X’ which is used in white washing is calcium oxide or quick lime and its formula is CaO.

(i)The reaction involved is

${CaO}_{s}$ + ${H}_{2}{O}_{l}$ $\longrightarrow$ ${Ca(OH)}_{2,aq}$

Answer 2

Answer:

(i)The substance ‘X’ which is used in white washing is calcium oxide or quick lime and its formula is CaO.