Assertion :Major part of carbon dioxide is transported in the form of sodium bicarbonate. Reason: 0.3 ml of carbon dioxide is transported per 100 ml of blood in dissolved state of plasma of blood.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Transportation of carbon dioxide in blood take by three distinct methods.
About 70% of gas is transported in the form of sodium carbonate.
Around 20-25% gas is transported in association with haemoglobin known as carbamino-haemoglobin.
Every deoxygenated blood dissolves approximately 4 ml of $C O_{2}$ to the alveoli.
So the correct option is "Assertion is correct but Reason is incorrect'.

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Q. Assertion: 100 ml of blood delivers 5 ml oxygen to tissues in normal conditions
Reason : One molecule of Hb can bind with 4 molecules of oxygen

Assertion (A) Phenol forms 2, 4, 6-tribromophenol on treatment with $B r_{2}$ in carbon disulphide at 273K.
Reason (R) Bromine polarises in carbon disulphide.
(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.