Which is least stable - Vidyadip

MCQ

Which is least stable

✓
$Bi{H_3}$
B
$Sb{H_3}$
C
$As{H_3}$
D
$P{H_3}$

✓

Answer

Correct option: A.

$Bi{H_3}$

a
(a) $P{H_3} > As{H_3} > Sb{H_3} > Bi{H_3}$

On moving down the group bond energy decreases. Hence, stability decreases.

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which of the following are $sp ^2$ hybridised species?

$Na_2S_2O_3.5H_2O$ is used in photography to

Of the following, the most acidic is

The normality of $4\%$ $(w/V)$ $NaOH$ is

The incorrect statement is

The sum of the number of lone pairs of electrons on each central atom in the following species is

$\left[\mathrm{TeBr}_6\right]^{2-},\left[\mathrm{BrF}_2\right]^{+}, \mathrm{SNF}_3 \text {, and }\left[\mathrm{XeF}_3\right]^{-}$ (Atomic numbers : $\mathrm{N}=7, \mathrm{~F}=9, \mathrm{~S}=16, \mathrm{Br}=35, \mathrm{Te}=52, \mathrm{Xe}=54$ )

$Be's$ $4^{th}$ electron will have four quantum numbers

$n$ $l$ $m$ $s$

$1-$ Butyne can be distinguished most easily from $2-$ butyne by

A student needs to prepare a buffer solution of propanoic acid and its sodium salt with $pH$ $4.$ The ratio of $\frac{\left[ CH _{3} CH _{2} COO ^{-}\right]}{\left[ CH _{3} CH _{2} COOH \right]}$ required to make buffer is .....

Given : $K _{ a }\left( CH _{3} CH _{2} COOH \right)=1.3 \times 10^{-5}$

Potential energy of an electron in the atom is