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| 1. |
H_(2)S is less acidic than H_(2)Te. Why ? |
| Answer» SOLUTION :As the size of the element increases down the group, E-H BOND length increases and hence E-H bond dissociation energy DECREASES. In other words, H-S bond dissociation energy is HIGHER than that of H-Te bond dissociation energy and hence H-S bond BREAKS less easily than H-Te bond. Therefore, `H_(2)S` is a weaker acid than `H_(2)Te`. | |