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Assertion: Yellow coloured aqueous solution of sodium chromate changes to orange red when CO2 under pressure is passed. Reason: Orange colour of solution is due to conversion of chromate ions into dichromate ions. |
Assertion and Reason both are correct statements and reason is the correct explanation for assertion. Assertion and Reason both are correct statements and reason is not the correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. |
Assertion and Reason both are correct statements and reason is the correct explanation for assertion. |
CO2 form acidic solution. 2CrO42- + 2H+ → Cr2O72- + H2O (yellow) (Orange red) |
