Question

Among the hydrides of group 16, write the hydride (i) Which is a strong reducing agent. (ii) Which has maximum bond angle. (iii) Which is most thermally stable.Give suitable reason in each case. (b) Complete the following equations :(i) S + H₂SO4 (Conc.) → ......... (ii) Cl₂ + NaOH (Cold and dilute) → ....​

Answer 1

Answer:

BiH  3   is the strongest reducing hydride among the given:  

PH  3  

<AsH  3

<SbH  3

<BiH  3

​

Explanation:

When we go down the group, the size of the atom increase also the distance between the metal hydrogen bond increases in hydrides. So, the strength of the metal hydrogen bond decreases, therefore, hydrogen is easily released. A reducing agent is one that supplies a hydrogen atom.