Chemistry · d- and f-Block Elements
On heating a mixture of sodium chloride and K2Cr2O7 with concentrated H2SO4 in a test tube, reddish-brown vapours of a compound are evolved. The molecular formula of the evolved gas and the oxidation state of the central metal atom in that compound respectively are:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1CrO2Cl2 and +5
- 2CrO2Cl2 and +6✓
- 3Cr2O2Cl2 and +6
- 4Cr2O2Cl2 and +3
Correct answer
CrO2Cl2 and +6
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