QUESTION #64 Properties of Sulphur and Halogens

Given below are two statements: Statement I: S_8$S_8$ solid undergoes disproportionation reaction under alkaline conditions to form S^2-$S^{2-}$ and S_2O_3^2-$S_2O_3^{2-}$ Statement II: ClO_4^-$ClO_4^-$ can undergo disproportionation reaction under acidic condition. In the light of the above statements, choose the most appropriate answer from the options given below:

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QUESTION #72 Oxygen Family (Group 16 Elements)

Choose the correct statements from the following A. All group 16 elements form oxides of general formula EO_2$EO_2$ and EO_3$EO_3$ where E = S$E = S$, Se, Te and Po. Both the types of oxides are acidic in nature. B. TeO_2$TeO_2$ is an oxidising agent while SO_2$SO_2$ is reducing in nature. C. The reducing property decreases from H_2S$H_2S$ to H_2Te$H_2Te$ down the group. D. The ozone molecule contains five lone pairs of electrons. Choose the correct answer from the options given below:

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QUESTION #76 Group 13 Elements (Boron Family)

Given below are two statements: Statement I: Group 13 trivalent halides get easily hydrolyzed by water due to their covalent nature. Statement II: AlCl_3$AlCl_3$ upon hydrolysis in acidified aqueous solution forms octahedral [Al(H_2O)_6]^3+$[Al(H_2O)_6]^{3+}$ ion. In the light of the above statements, choose the correct answer from the options given below:

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