MCQ
Which has the lowest boiling point
- A$N{H_3}$
- ✓$P{H_3}$
- C$As{H_3}$
- D$Sb{H_3}$
✓
Answer
Correct option: B.
$P{H_3}$
b
(b)
(b)
| Hydride | $N{H_3}$ | $P{H_3}$ | $As{H_3}$ | $Sb{H_3}$ | $Bi{H_3}$ |
| Boling point | $238.5$ | $185.5$ | $10.6$ | $254.6$ | $290$ |
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
Reaction of zinc with cold and very dilute nitric acid yields
Product $(A)$ will be
→Which of the following pairs of liquid is governed by Racult's law?
An aqueous solution of $\mathrm{NiCl}_{2}$ was heated with excess sodium cyanide in presence of strong oxidizing agent to form $\left[\mathrm{Ni}(\mathrm{CN})_{6}\right]^{2-}$. The total change in number of unpaired electrons on metal centre is $.....$
→For the reaction ${I_2} + 2{S_2}O_3^{2 - }\rightarrow 2{I^ - } + {S_4}O_6^{2 - }$,Correct option is
→At $25\,^oC$, the vapour pressure of pure liquid $A$ (mol. $wt. = 40$) is $100\, torr$, while that of pure liquid $B$ (mol.$wt. = 80$) is $40\,torr$. The vapour pressure at $25\,^oC$ of a solution containing $20\,gm$ of each $A$ and $B$ is .......... $torr$.
→A first order reaction is $10\%$ completed in $20\, minutes$ then what will be the time for $19\%$ completion of reaction ...... $\min$
→$RMgX + CO _{2} \underset{\text { ether }}{\stackrel{\text { dry }}{\longrightarrow}} Y \stackrel{ H _{3} O ^{+}}{\longrightarrow} RCOOH$
→What is $Y$ in the above reaction?
The nature of oxides $\mathrm{V}_{2} \mathrm{O}_{3}$ and $\mathrm{CrO}$ is indexed as $'\mathrm{X}^{\prime}$ and $'\mathrm{Y}^{\prime}$ type respectively. The correct set of $\mathrm{X}$ and $\mathrm{Y}$ is:
→In a reaction $N_2(g) + 3H_2(g) \to 2NH_3(g)$ the rate of appearance of $NH_3$ is $2.5 \times 10^{-4}\,mol\,L^{-1}\,s^{-1}$ . The rate of reaction and rate of disappearance of $H_2$ will be (In $mol\,L^{-1}\,sec^{-1})$
→