Q.

Statement I:  Na2Cr2O7 is more soluble than K2Cr2O7Statement II: Na2Cr2O7 is orange coloured, K2Cr2O7 is yellow coloured

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a

Statement I and Statement II both are correct

b

Statement I is correct Statement II is incorrect

c

Statement I is incorrect Statement II is correct

d

Statement I is incorrect Statement II is incorrect

answer is A.

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Detailed Solution

Sodium dichromate is more soluble than potassium dichromate. The yellow solution of sodium chromate is filtered and acidifiedwith sulphuric acid to give a solution from which orange sodium dichromate, Na2Cr2O7. 2H2O can be crystallised.
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Statement I:  Na2Cr2O7 is more soluble than K2Cr2O7Statement II: Na2Cr2O7 is orange coloured, K2Cr2O7 is yellow coloured