The compound (SiH_3)_3N is expected to be - Vidyadip

MCQ

The compound $(SiH_3)_3N$ is expected to be

A
pyramidal and more basic than $(CH_3)_3N$
✓
planar and less basic than $(CH_3)_3N$
C
pyramidal and less basic than $(CH_3)_3N$
D
planar and more basic than $(CH_3)_3N$

✓

Answer

Correct option: B.

planar and less basic than $(CH_3)_3N$

b
The compound $\left( SiH _3\right)_3 N$ is planar and less basic than $\left( CH _3\right)_3 N$ because the lone pair of electrons on $N$ in $\left( SiH _3\right)_3 N$ are used in $p \pi- d \pi$ back bonding by $Si$ atom while such $p \pi- d \pi$ bonding is not possible in $\left( CH _3\right)_3 N$ due to absence of vacant $d$-orbital in carbon.

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

More "M.C.Q (1 Marks)" from p -Block elements - ll→p -Block elements - ll — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The relation between faraday constant $F$, electron charge $e$ and avogadro number $N$ is

During an electrolysis of conc. $H_2SO_4$ , perdisulphuric acid $(H_2S_2O_8)$ and $O_2$ form in equimolar amount. The amount of $H_2$ that will form simultaneously will be $(2{H_2}S{O_4} \to {H_2}{S_2}{O_8} + 2{H^ + } + 2{e^ - })$

Consider the following reaction and select incorrect statement about gas $(P)$

$Zn + HN{O_3}(Dilute)\, \to \,Zn{(N{O_3})_2} + P\, \uparrow $

Polysaccharides have .............. linkage ?

Unit of Faraday is

In the compound lithium tetrahydroaluminate, the ligand is

$A ( g ) \rightarrow 2 B ( g )+ C ( g )$ is a first order reaction. The initial pressure of the system was found to be $800\,mm\,Hg$ which increased to $1600\,mm\,Hg$ after $10\,min$. The total pressure of the system after $30\,min$ will be $.........\,mm\,Hg$. (Nearest integer)

Atomic number of $\text{Mn, Fe}$ and $Co$ are $25, 2$6 and $27$ respectively. Which of the following inner orbital octahedral complex ions are diamagnetic?
$a. {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}} $
$b. {\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}} $
$c. {\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}} $
$d. {\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}} $

When glucose reacts with bromine water, the main product is

A rise in temperature increases the velocity of a reaction. It is because it results in