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Consider the following reaction and identify the reaction(s) in which $O_{2}$ gas is obtained as one of the product?
I. $K C l O_{3} \to_{M n O_{2} c a t a l y s t}^{Δ}$
II. $C O + H_{2} O \to_{I r o n c h r o m a t e c a t a l y s t}^{673 K}$
III. $L i N O_{3} \overset{Δ}{\to}$
IV. $N a H C O_{3} \overset{Δ}{\to}$
V. ${(N H_{4})}_{2} C r_{2} O_{7} \overset{Δ}{\to}$
VI. $N H_{4} N O_{2} \overset{Δ}{\to}$

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An Intiative by Sri Chaitanya

Only I and VI

Only I, II and IV

Only I and III

Only III and IV

answer is C.

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Hint: I, III

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