MCQ
Nitric acid oxidises phosphorus to
- A${H_2}{P_2}{O_7}$
- B${H_3}P{O_3}$
- C$AgN{O_3}$
- ✓$NO_2$
✓
Answer
Correct option: D.
$NO_2$
d
(d) ${P_4} + 20HN{O_3}\, \to \,4{H_3}P{O_4} + 20N{O_2} + 4{H_2}O$
(d) ${P_4} + 20HN{O_3}\, \to \,4{H_3}P{O_4} + 20N{O_2} + 4{H_2}O$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Glucose contains
Which of the following complex has highest $C-O$ bond length ?
→Vessel-$1$ contains $w _2 g$ of a non-volatile solute $X$ dissolved in $w _1 g$ of water. Vessel-$2$ contains $w _2 g$ of another non-volatile solute $Y$ dissolved in $w _1 g$ of water. Both the vessels are at the same temperature and pressure. The molar mass of $X$ is $80 \%$ of that of $Y$. The van't Hoff factor for $X$ is $1.2$ times of that of $Y$ for their respective concentrations. The elevation of boiling point for solution in Vessel-$1$ is. . . . . .$\%$ of the solution in Vessel- $2$.
→If osmotic pressure of a solution is $2\,atm$ at $273\,K$, then at $546\,K$, the osmotic pressure is ........... $atm.$
→Ethyl alcohol on oxidation with ${K_2}C{r_2}{O_7}$ gives
→Calculate $x + y + z$ for $H_3PO_3$ acid, where $x$ is number of lone pairs, $y$ is number of $\sigma $ bonds and $z$ is number of $\pi -$ bonds
→Reaction is called
The highest value of the calculated spin-only magnetic moment (in $BM$) among all the transition metal complexes is
→Treatment of compound $O$ with $KMnO_4 / \mathrm{H}^{+}$gave $P$, which on heating with ammonia gave $Q$. The compound $Q$ on treatment with $Br_2 / NaOH$ produced $R$. On strong heating, $Q$ gave $S$, which on further treatment with ethyl $2$-bromopropanoate in the presence of $KOH$ followed by acidification, gave a compound $T$.
→(image)
($1$) The compound $R$ is
(image)
($2$) The compound $T$ is
($A$) glycine
($B$) alanine
($C$) valine
($D$) serine
Given the answer question ($1$) and ($2$) 
Visible light will be absorbed by