NEET Sample Paper NEET Sample Test Paper-7

  • question_answer
    The substance used as a smoke screen in warfare is

    A)  \[SiC{{l}_{4}}\]                   

    B)  \[AlC{{l}_{3}}\]

    C)  \[P{{H}_{3}}\]                    

    D)  Acetylene

    Correct Answer: A

    Solution :

    \[SiC{{l}_{4}}\] fumes in moist air due to its hydrolysis and thus dense white smoke screen is formed which is used in warfare. \[SiC{{l}_{4}}+4{{H}_{2}}O\xrightarrow{{}}Si{{(OH)}_{4}}+HCl\]


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