Which one of the following chemicals is NOT used for fumigation in either horizontal or vertical storage structures to kill insects?

Which one of the following chemicals is NOT used for fumigation in either horizontal or vertical storage structures to kill insects?

Q. Which one of the following chemicals is NOT used for fumigation in either horizontal or vertical storage structures to kill insects?

(A) Methyl bromide                                      

(B) Phosphine

(C) Phostoxin                                                

(D) Silver sulphate

Ans: Silver sulphate

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