Which reaction has a positive value of $\Delta G^o$?

Which among the following pairs of halogens forms the interhalogen compound of the type $XX_{7}^{\prime}$?

Which of the following halogens combines with dihydrogen at the lowest temperature?

When iodine reacts with $NaF,$ $NaBr$ and $NaCl,$ what happens?

As the atomic number of halogens increases,the halogens:

Consider the following statements about the oxides of halogens:
$A$. At room temperature,$OF_2$ is thermally stable.
$B$. Order of stability of oxides of halogens is $I > Br > Cl$.
$C$. $I_2O_5$ is used in the estimation of $CO$.
$D$. $ClO_2$ is used as a bleaching agent.
The correct statements are: