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Question
Assertion :
Agent orange is a mixture of 2,4-D and 2,4,5-T, used during vietnam war. Reason: 2,4-D and 2,4,5-T are used as herbicides.
Assertion :
Agent orange is a mixture of 2,4-D and 2,4,5-T, used during vietnam war.
Reason: 2,4-D and 2,4,5-T are used as herbicides.
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The first selective herbicides to be discovered and used widely were 2,4-D and its derivatives. These compounds are very potent auxins. 2,4-D and 2,4,5-T destroy dicots mitosis. The block their seive elements and disturb mitosis. The plant is ultimately destroyed. Agent orange, which was used in the war in Vietnam as a defoliant is an effective mixture of free 2,4-D and the N-butyl ester of 2,4,5-T.So the correct answer is 'B'.
The first selective herbicides to be discovered and used widely were 2,4-D and its derivatives. These compounds are very potent auxins. 2,4-D and 2,4,5-T destroy dicots mitosis. The block their seive elements and disturb mitosis. The plant is ultimately destroyed. Agent orange, which was used in the war in Vietnam as a defoliant is an effective mixture of free 2,4-D and the N-butyl ester of 2,4,5-T.
So the correct answer is 'B'.
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