Multiple Choice

The facts that are true among the following are :

AThe electron affinity of oxygen is less than that of S but greater than that of Se
BFor Polonium, +4 oxidation state is more stable than +6 state.
Correct Answer
CS-S-S bond angle is $$60^{o}$$ in $$S_{8}$$ ring
DDissociation constant is minimum for $$H_{2}O$$ among the hydrides of 16th group elements.
Correct Answer

Solution

The electron affinity of oxygen is the least among 16th group elements.
Due to its large size and consequent inert pair effect, Po$$^{4+}$$ is more stable than $$Po^{6+}$$ state.
S-S-S bond angle is about $$105^o$$ in $$S_8$$ ring. $$H_2O$$ is the most stable hydride among those of 16th group elements. Hence, its dissociation constant is the least among the hydrides of the group.

SIMILAR QUESTIONS

p - block Elements

The sulphur molecule $$S_{8}$$ can be represented as a:

p - block Elements

$$H_2S(g)+Cl_2(g)\rightarrow 2HCl(g)+S(s)$$ The reaction is interpreted as :

p - block Elements

Identify the incorrect statement

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