Which of the following does not give oxygen o | vedclass

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(A) Heating $(NH_4)_2Cr_2O_7$ results in the evolution of nitrogen gas,water vapor,and chromium$(III)$ oxide: $(NH_4)_2Cr_2O_7 \xrightarrow{\Delta} Cr

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$(NH_4)_2Cr_2O_7$

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(A) Heating $(NH_4)_2Cr_2O_7$ results in the evolution of nitrogen gas,water vapor,and chromium$(III)$ oxide: $(NH_4)_2Cr_2O_7 \xrightarrow{\Delta} Cr_2O_3 + 4H_2O + N_2$. $KClO_3$ and $Zn(ClO_3)_2$ are chlorates that decompose to release oxygen gas upon heating. $K_2Cr_2O_7$ decomposes to release oxygen gas: $4K_2Cr_2O_7 \xrightarrow{\Delta} 4K_2CrO_4 + 2Cr_2O_3 + 3O_2$.

Which of the following does not give oxygen on heating?

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