Oxygen is not evolved on reaction of ozone with

Which of the following ions does not have $S-S$ linkage?

Below are two statements. One is labeled as Assertion $(A)$ and the other as Reason $(R):$
Assertion $(A):$ $H_2Te$ is more acidic than $H_2S$.
Reason $(R):$ The bond dissociation enthalpy of $H_2Te$ is less than that of $H_2S$.
In the context of the above statements,choose the correct answer from the following options:

Which of the following is the structure of oleum?

Which oxo acid of sulphur contains an $S-O-S$ bond?

Which of the following is the most basic oxide?