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  3. 11th Class
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11th Class Chemistry Sample Paper Chemistry Sample Paper-2

  • question_answer
    \[C{{O}_{2}}\]gas along with solid (Y) is obtained when sodium salt (X) is heated. (X) is again obtained when \[C{{O}_{2}}\] gas is passed into aqueous solution of (Y). Identify (X) and (Y) respectively.

    A)  \[N{{a}_{2}}C{{O}_{3}},N{{a}_{2}}O\]

    B)  \[N{{a}_{2}}C{{O}_{3}},NaOH\]

    C)  \[NaHC{{O}_{3}},N{{a}_{2}}C{{O}_{3}}\]

    D)  \[N{{a}_{2}}C{{O}_{3}},NaHC{{O}_{3}}\]

    Correct Answer: C

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