MCQ
The electronegativity of the following elements increases in the order
- A$C, N, Si, P$
- B$N, Si, C, P$
- ✓$Si, P, C, N$
- D$P, Si, N, C$
$Si \,<\, P\, <\, C\, < \,N$
In a period, electronegativity increases from left to right. In a group, the electronegativity decreases down the group.
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$(a)$ Number of $S-S$ bonds in $H_2S_nO_6$ are $(n +1)$
$(b)$ When $F_2$ reacts with $H_2O$ it forms $HF,$ $O_2$ & $O_3.$
$(c)$ $XeF_6$ on hydrolysis shows disproportionation reaction
$(d)$ $Al$ metal on reacting with dilute $NaOH$ gives a white precipitate of $Al (OH)_3$ as a final product

