The test of ozone $O_3$ can be done by

Among chalcogens,the correct order of amount of energy released during electron gain (electron gain enthalpy) is

Which group elements from the following are called as chalcogens?

Which of the following is the most basic oxide?

Given below are two statements:
Statement $I$: Oxygen being the first member of group $16$ exhibits only $-2$ oxidation state.
Statement $II$: Down the group $16$ stability of $+4$ oxidation state decreases and $+6$ oxidation state increases.
In the light of the above statements,choose the most appropriate answer from the options given below:

All the elements of the oxygen family are