Question

The crystals of compound A on keeping in air get converted into a white

powder. Its solution in water gives blue colour with red litmus paper,it is used

to remove permanent hardness of water,identify the substance, write its

chemical formula, identify its nature​

Answer 1

$\bf{\tt{Answer:}}$

The substance is:

Name: Washing Soda

Chemical formula: $\boxed{\tt{Na_{2} CO_{3}.10H_{2}O}}$

Naure: Basic

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