Download App

4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
In $Br{F_3}$ molecule,the lone pairs occupy equatorial positions to minimize
  • A
    Lone pair- lone pair repuilsion and lone pair-bond pair repulsion
  • ✓
    Lone pair- lone pair repulsion only
  • C
    Lone pair- bond pair repulsion only
  • D
    Bond pair- bond pair repulsion only
✓

Answer

Correct option: B.
Lone pair- lone pair repulsion only
(b) Bent $T-$ shaped geometry in which both lone pairs occupy the equatorial position of the trigonal bipyramidal here $({{l}_{p}}-{{l}_{p}})$ repulsion $= 0$

$({{l}_{p}}-{{b}_{p}})$ repulsion $= 4$ and 

$({{b}_{p}}-{{b}_{p}})$ repulsion $= 2$

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 4. Chemical bonding and molecular structure→4. Chemical bonding and molecular structure — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The orbital angular momentum of $3p$ electron is
→
In which of the following reactions $1,3$ butadiene will be obtained as a major product?
→
$C{u^{2 + }}$ will have the following electronic configuration
→
An organic compound containing carbon hydrogen and oxygen contains $52.20\%$ carbon and $13.04\%$ hydrogen. Vapour density of the compound is $23$. Its molecular formula will be
→
Consider the following ionization enthalpies of two elements $'A'$ and $'B'$.

Element Ionization enthalpy $(kJ/mol)$
  $1^{st}$  $2^{nd}$ $3^{rd}$ 
$A$ $899$ $1757$ $14847$
$B$ $737$ $1450$ $7731$

Which of the following statements is correct ?

→
Identify $'X\ '$ in the following sequence of reaction $\text{CH}_3-\text{CH}-\text{CH}-\text{CH}_2-\text{CH}_2-\text{CH}_3\xrightarrow[(\text{ii})\ \text{Na in liq. NH}_3]{(\text{i})\ \text{NaNH}_2}\text{X}$
→
product $(A)$ is
→
Correct order of acidic strength is
→
An organic compound contains $C$, $H$ and $O$ in the proportion of $6 : 1 : 8$ by weight, respectively. Its vapour density is $30$. Its molecular formula will be
→
Which of the following have maximum number of atoms?
→