12th Class Chemistry Sample Paper Chemistry Olympiad Sample Paper-3

  • question_answer
    Which of the following is not correct?

    A)  Red phosphorus shows chemiluminescence.

    B)  A mixture of \[CaC{{N}_{2}}\]and C is known as nitrolim.

    C)  A mixture of \[Ca{{\left( {{H}_{2}}P{{O}_{4}} \right)}_{2}}\] and \[CaS{{O}_{4}}2{{H}_{2}}O\]is known as superphosphate of lime.

    D)  Hydrolysis of \[NC{{l}_{3}}\] gives \[N{{H}_{3}}\] and HOCI.

    Correct Answer: A


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