d and f Block Elements Part 3

Section: Chemistry

Question : 6 of 29

Marks: +1, -0

On heating a mixture of common salt and K2Cr2O7 in equal amount along with concentrated H2SO4 in a test tube, a gas is evolved. Formula of the gas evolved and oxidation state of the central metal atom in the gas respectively are:

[21 Jan 2026 Shift 2]

Cr2O2Cl2 and +3
Cr2O2Cl2 and +6
CrO2Cl2 and +6
CrO2Cl2 and +5

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