Given below are two statements:
Statement I : $$\mathrm{S}_8$$ solid undergoes disproportionation reaction under alkaline conditions to form $$\mathrm{S}^{2-}$$ and $$\mathrm{S}_2 \mathrm{O}_3{ }^{2-}$$.
Statement II : $$\mathrm{ClO}_4^{-}$$ can undergo disproportionation reaction under acidic condition.
In the light of the above statements, choose the most appropriate answer from the options given below :
Choose the correct statements from the following
A. All group 16 elements form oxides of general formula $$\mathrm{EO}_2$$ and $$\mathrm{EO}_3$$, where $$\mathrm{E}=\mathrm{S}, \mathrm{Se}, \mathrm{Te}$$ and $$\mathrm{Po}$$. Both the types of oxides are acidic in nature.
B. $$\mathrm{TeO}_2$$ is an oxidising agent while $$\mathrm{SO}_2$$ is reducing in nature.
C. The reducing property decreases from $$\mathrm{H}_2 \mathrm{~S}$$ to $$\mathrm{H}_2$$ Te down the group.
D. The ozone molecule contains five lone pairs of electrons.
Choose the correct answer from the options given below:
Consider the oxides of group 14 elements $$\mathrm{SiO}_2, \mathrm{GeO}_2, \mathrm{SnO}_2, \mathrm{PbO}_2, \mathrm{CO}$$ and $$\mathrm{GeO}$$. The amphoteric oxides are
Give below are two statements:
Statement - I: Noble gases have very high boiling points.
Statement - II: Noble gases are monoatomic gases. They are held together by strong dispersion forces. Because of this they are liquefied at very low temperature. Hence, they have very high boiling points.
In the light of the above statements, choose the correct answer from the options given below:
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