Assertion -Sulphuric acid is more viscous than water- Reason- Concentrated sulphuric acid has a great affinity for water-If both assertion and reason are correct and the reason is the correct explanation of the assertion-If both assertion and reason are correct- but the reason is not the correct explanation of the assertion-If assertion is correct- but reason is incorrect-If assertion is incorrect - but reason is correct-

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Sulphuric Acid

Assertion :Su...

Question

Assertion :Sulphuric acid is more viscous than water. Reason: Concentrated sulphuric acid has a great affinity for water.

If both assertion and reason are correct and the reason is the correct explanation of the assertion.

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If both assertion and reason are correct, but the reason is not the correct explanation of the 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 B If both assertion and reason are correct, but the reason is not the correct explanation of the assertion.
Sulfuric acid is slightly yellow viscous liquid , It is viscous than water because tensile strength of sulphuric acid is higher than water, Concentrated sulfuric acid has a very strong affinity for water. but here strong affinity is because of an amount of strong acid is added to water, the effect is that of adding the same amount of hydrogen ions, since the acid is totally dissociated, Because water is present in great excess, any acid whose conjugate base is weaker than $H_{2} O$ (i.e., has a lesser affinity for protons than has $H_{2}$ will be ionized almost completely in aqueous solution.
Thus both assertion and reason are CORRECT, but reason is NOT THE CORRECT explanation of the assertion.
Option B is correct.

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Similar questions

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:

(a)

If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b)

If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c)

If assertion is true but reason is false.

(d)

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Assertion: 4-nitrophenol is more acidic than picric acid.
Reason: Phenol is a weaker acid than carbonic acid.

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:

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(d)

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Q. Assertion: The compressibility factor for

H_{2}

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Read the assertion and reason carefully to mark the correct option out of the options given below :

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(d) If the assertion and reason both are false.

(e) If assertion is false but reason is true.

Assertion: Acetic acid does not undergo haloform reaction.

Reason: Acetic acid has no alpha hydrogens.

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.
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