Assertion :Helianthus flower is not a real flower. Reason: Because they are lacking the true calyx around the flower.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Helianthus flower is not a real flower. It is because the real flowers are small but in Helianthus (sunflower), flower head (pseudanthium) is sometimes very large. The flower head is a special type of inflorescence which includes a small cluster to flowers to form a single flower-like structure. So, the correct answer is C.

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Reason (R) They can form intermolecular hydrogen-bonding.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

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