A sulphate salt of group 2 element of the periodic table is a white, soft substance, which can be used in false ceiling. When it is left open it becomes a hard, solid mass.
(a) Why does it show such behaviour?
(b) Identify the sulphate salt and give another use of it.
(c) Give reasons foe the preparation of the same.
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Answer:a it is deliquescent which means that it absorbs and doesnot form a solution but a solutewhich is hard.
b This is sodium sulphate
which is used in some chemical reactions like making liquid soap
c I inda don't understand your last qn maybe rewrite it
Explanation:
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