MCQ
Which is the $CORRECT$ relation of bond angles?
- A$NH_3 > (CH_3)_3N > (SiH_3)_3N$
- ✓$(SiH_3)_3N > (CH_3)_3N > NH_3$
- C$NH_3 > (SiH_3)_3N > (CH_3)_3N$
- D$(CH_3)_3N > (SiH_3)_3N > NH_3$
✓
Answer
Correct option: B.
$(SiH_3)_3N > (CH_3)_3N > NH_3$
b
$\mathrm{NH}_{3} \quad \mathrm{sp}^{3}: 107^{o}$
$\mathrm{NH}_{3} \quad \mathrm{sp}^{3}: 107^{o}$
$\left(\mathrm{CH}_{3}\right)_{3} \mathrm{N} \quad \mathrm{sp}^{3}: 108^{o}$ -bulky have more
repulsion than smaller $H$
$-\left(\mathrm{SiH}_{3}\right)_{3} \mathrm{N} \cdot \mathrm{sp}^{2}: 120^{o}\, \mathrm{LP}$ of $\mathrm{N}$ engages in back
bonding with empty $d$ orbitals of $Si$
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
Which of the following pair is not isoelectronic species? (At. no. $Sm , 62 ; Er , 68: Yb , 70: Lu , 71 ; Eu , 63: Tb$, $65$; $\operatorname{Tm}, 69)$
→Which reagent can be used to identify nickel ion
For a phase change, ${H_2}O(l)\underset {{0^{\,o}}C,\,1\,bar} \longleftrightarrow {H_2}O(s)$
→Which compound undergoes nucleophilic substitution with $NaCN$ at the fastest rate ?
→The incorrect statements regarding enzymes are:
→$(A)$ Enzymes are biocatalysts.
$(B)$ Enzymes are non-specific and can catalyse different kinds of reactions.
$(C)$ Most Enzymes are globular proteins.
$(D)$ Enzyme - oxidase catalyses the hydrolysis of maltose into glucose.
Choose the correct answer from the option given below:
Cyanides exists in:
With increasing principle quantum number, the energy difference between adjacent energy levels in $H$ atom
→According to Henry's law, the solubility of a gas in a given volume of liquid increases with increase in
Which of the following has maximum number of unpaired electron
The molecular formula of diphenylmethane, is $C_{13}H_{12}$
→How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom ?