Question

Substance 'x' is used for white washing .name 'x' and write its formula

Answer 1

Substance X is Calcium Oxide whose solution we use in water which is used for white washing. The formula of substance X is CaO. (ii) Calcium oxide reacts vigorously with water to produce slaked lime (calcium hydroxide) releasing a large amount of heat. The formula is CaO (Calcium Oxide)

Answer 2

$\huge \bold{ \mathfrak{ram \: ram \: ji..}}$

(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

$\huge{ca} {o} + h2o = > ca{(oh)}2$