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Question

Match the following.

Artificial hormonesApplications(1) Naphthalene acetic acid(A) used in the prevention of ripening of fruits to assist in marketing(2) 2, 4 - Dichlorophenoxyacetic acid(B) used in the production of latex(3) Synthetic gibberellin(C) used as a weedicide to remove unwanted plants(4) Ethephon(D) used in the prevention of dropping of premature fruits

A
1 - A, 2 - C, 3 - D, 4 - B
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B
1 - D, 2 - B, 3 - A, 4 - C
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C
1 - D, 2 - C, 3 - A, 4 - B
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D
1 - D, 2 - B, 3 - C, 4 - A
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Solution

The correct option is C 1 - D, 2 - C, 3 - A, 4 - B
Plant hormones are artificially synthesized by identifying the chemical structure of the hormones. Some examples are:
(1) Naphtalene acetic acid (NAA) - an artificial auxin that is primarily used in sprouting and to prevent the premature dropping of fruits.
(2) 2, 4 - Dichloropenoxyacetic acid (2.4 - D) - an artificial auxin that is used as a weedicide to remove unwanted plants.
(3) Synthetic gibberllins - used to prevent the ripening of fruits so that they can be preserved for a longer time.
(4) Ethephon - a liquid chemical that converts into ethylene gas when used on rubber trees to increase production of latex.

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