Assertion(A): H2Se is less acidic than H2TeReason(R): H—S bond has more bond enthalpy than H-Te bond.

H2S is less acidic than H2Te. acidity depends on H-S and H-Te bond dissociation energy higher the bond dissociation energy. Less will be acidity. On moving down the group the size of the atom increases and ionization enthalpy decreases. This helps to dissociate the bond easily. That's why H2Te is more acidic than H2S.

Assertion(A): H2Se is less acidic than H2TeReason(R): H—S bond has more bond enthalpy than H-Te bond.

H2S is less acidic than H2Te. acidity depends on H-S and H-Te bond dissociation energy higher the bond dissociation energy. Less will be acidity. On moving down the group the size of the atom increases and ionization enthalpy decreases. This helps to dissociate the bond easily. That's why H2Te is more acidic than H2S.

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Assertion(A): H₂Se is less acidic than H₂Te
Reason(R): H—S bond has more bond enthalpy than H-Te bond.

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Detailed Solution

H₂S is less acidic than H₂Te. acidity depends on H-S and H-Te bond dissociation energy higher the bond dissociation energy. Less will be acidity.
On moving down the group the size of the atom increases and ionization enthalpy decreases.
This helps to dissociate the bond easily. That's why H₂Te is more acidic than H₂S.

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