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Assertion (A): Heat of neutralisation fo...

Assertion (A): Heat of neutralisation for both `HNO_(3)` and `HCI` with `NaOH` is `53.7 kJ per mol^(-1)`.
Reason (R ) : `NaOH` is a strong electrolyte/base.

Answer

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Assertion (A): The heat of neutralisation of perchloric acid, HCIO_(4) , with NaOH is same as that of HCI with NaOH . Reason (R ) : Both HCI and HCIO_(4) are strong acids.

The heat of neutralisation of HCI with NaOH is same as that of HNO_(3) with KOH .

Knowledge Check

  • Assertion. Heat of neutralisation for both HNO_(3) and HCl with NaOH is53.7 kJ per mole. Reason. NaOH is a strong electrolyte // base

    A
    If both A and R are true,andR is the true explanation of A.
    B
    If both A and R are true,but R is not the true explanation of A.
    C
    If A is true, but R is false
    D
    If both A and R are false.

  • Assertion : Heat of neutralization for both H_(2)SO_(4) and HCl with NaOH is 53.7 kJ mol^(−1) . Reason : Both HCl and H_(2)SO_(4) are strong acids.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • Assertion(A) : Heat of neutralisation of HCl and NaOH is same as that of H_(2)SO_(4) with NaOH . Reason(R ) : HCl , H_(2)SO_(4) and NaOH are all strong electrolytes.

    A
    Both `A`and `R` are true and `R` is the correct explantion of `A`
    B
    Both `A`and `R` are true and `R` is not a correct explantion of `A`
    C
    `A` is true but `R` is false
    D
    `A` is false but `R` is true

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    Explain why heat of neutralisation of strong acid and weak base is less than 57.1 kJ .

    Assertion : Heat of neutralisation of nitric acid with NaOH is same to that of HCl and NaOH. Reason : In both cases strong acid and strong bases are neutralised. H^(+)+OH^(-)rarrH_(2)O .

    Assertion : Heat of neutralization of perchloric acid, HClO_(4) with NaOH is same as is that of HCl and NaOH. Reason : Both HCl and HClO_(4) are strong acids

    Assertion : Heat of neutralisation of HNO_(3) and NaOH is same as that of HCl and KOH. Reason : Both HNO_(3) and HCl are storng acids and NaOH and KOH are strong bases.

    Heat of neutralisation for the reaction: NaOH+HCl to NaCl+H_(2)O is 57.1 kJ mol^(-1) . The heat released when 0.25 mole of NaOH is titrated against 0.25 mole of HCl will be:

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