MCQ
Nitrogen forms how many oxides
  • A
    $3$
  • B
    $4$
  • C
    $5$
  • D
    $6$

Answer

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

Consider the following reactions :

$(i)$ Glucose $+ ROH \quad \stackrel{\text { dry } HCl }{\longrightarrow}$ Acetal

$\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{x\,eq.of}}$ acetyl derivative

$(ii)$ Glucose $\xrightarrow{{Ni/{H_2}}}A\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{y\,\,eq.\,of}}$ acetyl derivative.

$(iii)$ Glucose $\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{z\,ed.\,of}}$ acetyl derivative.

$' x ^{\prime},{ }^{\prime} y ^{\prime}$ and ${ }^{\prime} z^{\prime}$ in these reactions are respectively.

Which of the following elements does not show allotropy?
Which of following is correct ?
The vapour pressure of a solvent decreases by $10 \,mm$ of $Hg$ when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is $0.2$. What should be the mole fraction of the solvent if the decrease in the vapour pressure is to be $20\,mm$ of $Hg$ ?
Glycosidic linkage between $C _{1}$ of $\alpha$-glucose and $C _{2}$ of $\beta$-fructose is found in.
In the following graphs, which graph $(s)$ belong to first order
Oxyacid of chlorine show similarity in
A first order reaction was started with a decimolar solution of the reactant, 8 minutes and 20 seconds later its concentration was found to be $M/100$. So the rate of the reaction is
$CrO_4^{ - 2}\underset{{pH - y}}{\overset{{pH - x}}{\longleftrightarrow}}C{r_2}O_7^{ - 2}$ 

$pH$ values of $x$ and $y$ are respectively

Which one of the following statements is wrong