Which of the following does not give oxygen o | vedclass

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(B) Heating $K_2Cr_2O_7$ gives $O_2$ gas: $4K_2Cr_2O_7 \rightarrow 4K_2CrO_4 + 2Cr_2O_3 + 3O_2$.Heating $(NH_4)_2Cr_2O_7$ gives $N_2$ gas: $(NH_4)_2Cr

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$(NH_4)_2Cr_2O_7$

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(B) Heating $K_2Cr_2O_7$ gives $O_2$ gas: $4K_2Cr_2O_7 \rightarrow 4K_2CrO_4 + 2Cr_2O_3 + 3O_2$.Heating $(NH_4)_2Cr_2O_7$ gives $N_2$ gas: $(NH_4)_2Cr_2O_7 \rightarrow N_2 + Cr_2O_3 + 4H_2O$.Heating $KClO_3$ gives $O_2$ gas: $2KClO_3 \rightarrow 2KCl + 3O_2$.Heating $Zn(ClO_3)_2$ gives $O_2$ gas: $Zn(ClO_3)_2 \rightarrow ZnCl_2 + 3O_2$.Therefore,$(NH_4)_2Cr_2O_7$ does not produce $O_2$ on heating.

Which of the following does not give oxygen on heating?

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