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  5. Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ

NEET Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ NEET PYQ-Some Basic Concepts Chemistry

  • question_answer
    In the reaction \[4N{{H}_{3}}(g)+5{{O}_{2}}(g)\to \]\[4NO(g)+6{{H}_{2}}O(l)\]  when 1 mole of ammonia and 1 mole of \[{{O}_{2}}\] are made to react to completion then :                                                        [AIPMT 1998]

    A)  1.0 mole of \[{{H}_{2}}O\] is produced

    B)                   1.0 mole of NO will be produced

    C)       all the oxygen will be consumed  

    D)  all the ammonia will be consumed

    Correct Answer: C

    Solution :

    \[4N{{H}_{3}}(g)+5{{O}_{2}}(g)\xrightarrow[{}]{{}}4NO(g)+6{{H}_{2}}O(\ell )\]
                \[4\,mol\,+5\,mol\,\xrightarrow[{}]{{}}4\,mol+\,6\,mol\]
                According to equation
                1 mole of O2 requires = 4/5 = 0.8 mole of \[N{{H}_{3}}\]
                While 1 mole of \[N{{H}_{3}}\] requires \[\text{=}\frac{\text{5}}{\text{4}}\text{=1}\text{.25}\] mole of \[{{O}_{2}}\]
                As there is 1 mole of \[N{{H}_{3}}\] and 1 mole of \[{{O}_{2}}\]. So, all oxygen will be consumed.


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