NEET Sample Paper NEET Sample Test Paper-1

  • question_answer Which of the following compounds give oxygen on heating?

    A)  \[{{K}_{2}}C{{r}_{2}}{{O}_{7}},\,\,KCl{{O}_{3}}\]

    B)  \[{{(N{{H}_{4}})}_{2}}C{{r}_{2}}{{O}_{7}},KCl{{O}_{3}}\]

    C)  \[Pb{{(N{{O}_{3}})}_{2}},\,AgN{{O}_{3}}\]

    D)  Both (A) and (C)

    Correct Answer: D

    Solution :

    \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\xrightarrow{\Delta }2{{K}_{2}}Cr{{O}_{4}}+C{{r}_{2}}{{O}_{3}}+\frac{3}{2}{{O}_{2}}\] \[2KCl{{O}_{3}}\xrightarrow{\Delta }2KCl\,+3{{O}_{2}}\] \[{{\left( N{{H}_{4}} \right)}_{2}}C{{r}_{2}}{{O}_{7}}\xrightarrow{\Delta }{{N}_{2}}+C{{r}_{2}}{{O}_{3}}+2{{H}_{2}}O\] \[2Pb\,{{\left( N{{O}_{3}} \right)}_{2}}\xrightarrow{\Delta }2PbO+4N{{O}_{2}}+{{O}_{2}}\] \[2AgN{{O}_{3}}\xrightarrow{{{340}^{o}}C}2Ag+2N{{O}_{2}}+{{O}_{2}}\]

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