Assign suitable reason for the following:BiH3 is the strongest reducing agent among all the hydrides of group 15 elements.H2O is a liquid but H2S is a gas.O3 acts as a powerful oxidising agent.

Assign suitable reason for the following:BiH3 is the strongest reduci

1.	Assign suitable reason for the following:BiH3 is the strongest reducing agent among all the hydrides of group 15 elements.H2O is a liquid but H2S is a gas.O3 acts as a powerful oxidising agent.
Answer» Among 15th group elements, Bi is of the largest size and hence Bi-H bond is the longest. As a result BiH₃ acts as the strongest reducing agent because of easy formation of H₂. Due to intermolecular hydrogen bonding, H₂O is a liquid whereas H₂S which does not have such bonds exist as a gas. O₃ gets dissociated to give nascent oxygen which is responsible for its strong oxidising action O → O + ‘O’

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Assign suitable reason for the following:BiH3 is the strongest reducing agent among all the hydrides of group 15 elements.H2O is a liquid but H2S is a gas.O3 acts as a powerful oxidising agent.

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