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.