Verified Solution • 2025–26 Session moderate

QJEEM24Chb964: JEE Main 2024 Chemistry - Class 11 JEEM24Chb964 Solution: Given below are two statements: One is labelled as Assertion…

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R)

Assertion (A) : Enthalpy of neutralisation of strong monobasic acid with strong monoacidic base is always −57 kJ mol−1-57 \mathrm{~kJ} \mathrm{~mol}^{-1}

Reason (R) : Enthalpy of neutralisation is the amount of heat liberated when one mole of H+\mathrm{H}^{+} ions furnished by acid combine with one mole of −OH{ }^{-} \mathrm{OH} ions furnished by base to form one mole of water.

In the light of the above statements, choose the correct answer from the options given below.

Multiple Choice Options

  • A (A) is true but (R) is false
  • B Both (A) and (R) are true and (R) is the correct explanation of (A)
  • C Both (A) and (R) are true but (R) is not the correct explanation of (A)
  • D (A) is false but (R) is true

Step-by-Step Verified Solution

Enthalpy of neutralisation of strong acids and bases is −57 kJ/mol-57 \mathrm{~kJ} / \mathrm{mol} . which is fixed for reaction of 1 mole of H+\mathrm{H}^{+} with 1 mole of OH−\mathrm{OH}^{-} to form 1 mole of water.

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