MCQ
The covalency of nitrogen in $HN{O_3}$ is
  • A
    $0$
  • B
    $3$
  • C
    $4$
  • $5$

Answer

Correct option: D.
$5$
(d) $( + 1) + x + 3( - 2) = 0 \Rightarrow 1 + x - 6 = 0$$ \Rightarrow x = 6 - 1 = 5$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

If the ionization potential of $Li^{+2}$ is $122.4\, eV.$ What is the $5^{th}$ $I.P.$ of carbon ........... $\mathrm{V}$
Which of the following contains a coordinate covalent bond
The initial rate for a first order reaction is $0.6932 \times10^{-2}\,mol\, L^{-1}\, \min^{-1}$ and the initial conc. of the reactant is $0.1\, M$. Then $t_{1/2}$ is equal to ...... $\min $
Polarisation of electrons in acroline may be written as
The compound $I$ and $II$ are related as

$\mathop {\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {COOH\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {H - C - OH\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}} \\ 
  {Br - C - H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,\,\,COOC{H_3}} 
\end{array}}\limits_{(I)} $ $\mathop {\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,COOC{H_3}\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {H - C - Br\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}} \\ 
  {HO - C - H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,\,\,\,\,\,\,COOH\,\,\,\,\,\,\,\,} 
\end{array}}\limits_{(II)} $

Ethylene reacts with bromine to form
An alkyl halide may be converted into an alcohol by
What will be the product, when carboxy phenol, obtained by Reimer Tiemann’s process, is deoxidised with $Zn$ powder
Predict the major product $P$ in the following reaction.
Which one of the following molecules is paramagnetic?