Identify the reactions in which,upon heating, | vedclass

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(B) $2NaN_{3(s)} \xrightarrow{\Delta} 2Na_{(s)} + 3N_{2(g)}$. Here,$N_{2}$ is a diatomic gas and $Na$ is a metallic residue.$(B)$ $Ni(CO)_{4(g)} \xrig

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$A, B, D$

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(B) $2NaN_{3(s)} \xrightarrow{\Delta} 2Na_{(s)} + 3N_{2(g)}$. Here,$N_{2}$ is a diatomic gas and $Na$ is a metallic residue.$(B)$ $Ni(CO)_{4(g)} \xrightarrow{250^{\circ}C} Ni_{(s)} + 4CO_{(g)}$. Here,$CO$ is a diatomic gas and $Ni$ is a metallic residue.$(C)$ $2KClO_{3(s)} \xrightarrow{\Delta} 2KCl_{(s)} + 3O_{2(g)}$. Here,$KCl$ is a salt,not a metallic residue.$(D)$ $2HgO_{(s)} \xrightarrow{\Delta} 2Hg_{(l)} + O_{2(g)}$. Here,$O_{2}$ is a diatomic gas and $Hg$ is a metallic residue.$(E)$ $NH_{4}NO_{2(s)} \xrightarrow{\Delta} N_{2(g)} + 2H_{2}O_{(g)}$. Here,no metallic residue is left.Therefore,reactions $(A), (B),$ and $(D)$ satisfy the condition.

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