Assertion :Blood of insects is colourless Reason: The blood of insect does not play any, role in transport of oxygen.

If both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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If both Assertion and Reason are correct, but Reason is not the correct explanation for Assertion

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If Assertion is correct but Reason is incorrect

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If Assertion is incorrect but Reason is correct

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Solution

The correct option is C If Assertion is correct but Reason is incorrect
A. If both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Solution : The blood of insects are colorless because of the absence of haemoglobin and have haemolymph. They do not need oxygen carrying haemoglobin as the oxygen diffuse through their spiracles and tracheoles.
So the correct answer is " If both Assertion and Reason are correct and Reason is the correct explanation for Assertion".

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Similar questions

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

Reason
High biological oxygen demand means low activity of bacteria in water.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

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

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

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.

Assertion (A) Order and molecularity are same.

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

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

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

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