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JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Self Evaluation Test - Some Basic Concepts of Chemistry

  • question_answer
    How many of \[0.1N\text{ }HCl\]are required to react completely with 1 g mixture of \[N{{a}_{2}}C{{O}_{3}}\] and \[NaHC{{O}_{3}}\]. containing equimolar amounts of two ?

    A) 157.7mL       

    B) 15.77 mL

    C) 147.7 mL                     

    D) 14.77 mL

    Correct Answer: A

    Solution :

    [a] \[\underset{x}{\mathop{N{{a}_{2}}C{{O}_{3}}}}\,\]       \[\underset{(1-x)}{\mathop{NaHC{{O}_{3}}}}\,\] \[\frac{x}{106}=\frac{1-x}{84}\] given (moles are equal) \[x=0.557\] \[\frac{0.557}{53}+\frac{0.443}{84}=\frac{V\times 0.1}{1000}\] \[V=157.7\text{ }mL\]   


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