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Which of the following is used as an antitranspirant

Which of the following is used as an antitranspirant?

Options

(a) Cobalt chloride
(b) Napthol acetic acid
(c) Calcium carbonate
(d) Phenyl mercuric acetate

Correct Answer:

Phenyl mercuric acetate

Explanation:

The substances which reduce the rate of transpiration without affecting other physiological processes are called anti transpirants. Phenyl mercuric acetate (PMA) in 10-4 M concentration are being used as anti transpirant in plant.

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