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  1. The chemical heptachlor in anti-termite proofing has concentration by weight of:

    2. A.

     0.50%
    B.

     0.10%
    C.

     0.30%
    D.

     0.20%

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    Answer : Option A

    Explanation :

    Heptachlor in anti-termite proofing has concentration by weight of 0.50%.

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