(A) Conc.H₂SO₄ is an example of viscous liquid
(R) Hydrogen bonding is present between molecules of sulphuric acid

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(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

Both (A) and (R) are true and (R) is not the correct explanation of (A)

answer is A.

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Detailed Solution

Anhydrous H₂SO₄ is a clear liquid like oil and has high viscosity because of extensive hydrogen bonding. It is an unsymmetrical molecule and so, has a permanent dipole and the hydrogens attached to oxygen are obvious candidates for hydrogen bonding.

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