Assertion :Platyhelminthes are parasite. Reason: Monopisthocotylea is a class of platyhelminthes.

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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Assertion is incorrect but Reason is correct.

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Solution

The correct option is C Assertion is correct but Reason is incorrect.
Most platyhelminthes are parasites. Parasitic flatworms feed on blood, tissue fluids, or pieces of cells inside the bodies of their hosts. Therefore assertion is correct. Monopisthocotylea is a subclass of parasitic flatworms in the class Monogenea. Therefore reason is incorrect. Hence option C is correct answer.

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Similar questions

Q. Assertion: The compressibility factor for

H_{2}

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(1 + \frac{P b}{R T})

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ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

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Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

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