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  1. Tear gas used by the police to disperse the mob contains

    2. A.

     Carbon dioxide
    B.

     Chlorine
    C.

     Ammonia
    D.

     Hydrogen sulphide

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    Answer : Option B

    Explanation :

    Tear gas, formally known as a lachrymatory agent, is a possibly lethal chemical weapon that stimulates the corneal nerves in the eyes to cause tears, pain, and even blindness. The compound 2chlorobenzalmalononitrile (chemical formula: C10H5ClN2), is the defining component of a "tear gas" commonly referred to as CS gas, which is used as a riot control agent.

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