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Question

Chemistry Question on d -and f -Block Elements

Which of the following does not give oxygen on heating ?

A

(NH4)2Cr2O7{ (NH_4)_2Cr_2O_7 }

B

KClO3{KClO_3 }

C

Zn(ClO3)2{ Zn(ClO_3)_2}

D

K2Cr2O7{K_2Cr_2O_7 }

Answer

(NH4)2Cr2O7{ (NH_4)_2Cr_2O_7 }

Explanation

Solution

(NH4)2Cr2O7>[Δ]N2+Cr2O3+4H2O{ (NH_4)_2 Cr_2 O_7 ->[\Delta] N_2 + Cr_2O_3 + 4 \, H_2 O} do not produces O2O_2.