Assertion :Film forming chemical should not be used for checking transpiration Reason: Film forming chemicals interrupt photosynthesis and respiration
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is D Both Assertion and Reason are incorrect
Assertion:
Film forming chemical should not be used for checking transpiration.
Reason:
Film forming chemicals interrupt photosynthesis and respiration.
Both Assertion and Reason are incorrect.
Film
forming chemicals check transpiration by forming a thin film on the
transpiring surface. They are sufficiently permeable to carbon dioxide
and oxygen to allow photosynthesis and respiration but prevent movement
of water vapours through them. There such chemicals can be used as
antitranspirants.
So, the correct answer is 'Both Assertion and Reason are incorrect'