JEE Main & Advanced Chemistry The s-Block Elements Question Bank Alkali Metals

  • question_answer When sodium bicarbonate is heated the product obtained is [Pb. CET 2000; DCE 2004]

    A) Na

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

    C) \[NaC{{O}_{3}}\]

    D) \[N{{a}_{2}}(HC{{O}_{3}})\]

    Correct Answer: B

    Solution :

    When sodium bicarbonate \[(NaHC{{O}_{3}})\]is heated, sodium carbonate, \[C{{O}_{2}}\] and water are formed. \[2NaHC{{O}_{3}}\xrightarrow{\Delta }\underset{\text{Sodium carbonate}}{\mathop{N{{a}_{2}}C{{O}_{3}}}}\,+C{{O}_{2}}\uparrow +{{H}_{2}}O\]

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