JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Self Evaluation Test - The p-Block Elements (Group 15, 16, 17 & 18)

  • question_answer
    A greenish yellow gas reacts with an alkali metal hydroxide to form a halate which can be used in fireworks safety matches. The gas and halate respectively are

    A) \[B{{r}_{2}},\,\,KBr{{O}_{3}}\]

    B) \[C{{l}_{2}},\,\,KCl{{O}_{3}}\]

    C) \[{{I}_{2}},NaI{{O}_{3}}\]                  

    D) \[C{{l}_{2}},NaCl{{\text{O}}_{3}}\]

    Correct Answer: B

    Solution :

    [b] \[3C{{l}_{2}}+6KOH\to KCl{{O}_{3}}+5KCl+3{{H}_{2}}O\] \[KCl{{O}_{3}}\] is used in fire works and safety matches and \[C{{l}_{2}}\] is greenish yellow gas.


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