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Q.

Select the correct statement(s):

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a

White ppt. of BaSO3 and CaSO3 is soluble in dil. HNO3,  dil. HCl and CH3COOH.

b

On standing, the precipitate BaSO3 is slowly oxidised to sulphate and then becomes insoluble in dilute mineral acids.

c

When excess of SO2 gas is passed into the solution of BaSO3 and CaSO3 then white turbidity disappears.

d

The hydrogen carbonates of alkali metals are soluble in water, but are less soluble than the corresponding norrnal carbonates.

answer is B.

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Detailed Solution

Barium sulphite reacts with HCl and form sulphur di oxide and get soluble. Hence it is a reaction.
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