Arrange the following acids in the decreasing order of their acidic strength: $ClOH \,(I), BrOH \,(II), IOH \,(III)$. Select the correct option.

Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?

Given below are two statements:
Statement $I$ : Both metal and non-metal exist in $p$ and $d-$block elements.
Statement $II$ : Non-metals have higher ionisation enthalpy and higher electronegativity than the metals.
In the light of the above statements,choose the most appropriate answer from the option given below:

Which of the following compounds is most acidic?

The electronic configuration of an atom $A$ is $1s^2, 2s^2 2p^6, 3s^2 3p^6 3d^{10}, 4s^2 4p^3$. The chemistry of $A$ is therefore likely to be similar to that of:

The diagonal relationship between $Be$ and $Al$ is due to: