Assertion: Agent orange is a mixture of 2,4-D and 2,3,4-T , used during Vietnam war.
Reason : 2,4-D and 2,4,5-T are used as herbicides.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion.
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If the assertion and reason is false but reason is true

Answer

B

Explanation

(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 destory dicts weeds. They block their seive elements and distory dicots weeds. They block their sevir elements and distube 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-Dand the N-bytyl este of 2,4,5-T