Arrange the following elements in increasing order of electronegativity:
$N, O, F, C, Si$
Choose the correct answer from the options given below:

If the difference in electronegativity between $E$ and $O$ is greater than $1.4$,determine the nature of the hydroxide $E-O-H$ of element $E$.

Which of the following bonds has the most polar character?

Select the incorrect order$(s)$ of electronegativity of the element$(s)$:

Consider the following.
Statement-$I$ : The order of electronegativity of $B, Al, In, Tl$ is $B > Tl > Al > In$.
Statement-$II$ : Boric acid is a weak protonic acid.
The correct answer is

Electronic configuration of four elements $A, B, C$ and $D$ are given below $:$
$(A) 1s^2 2s^2 2p^3$
$(B) 1s^2 2s^2 2p^4$
$(C) 1s^2 2s^2 2p^5$
$(D) 1s^2 2s^2 2p^2$
Which of the following is the correct order of increasing electronegativity $(Pauling's scale)$?