MCQ
$C-H$ bond length is greatest in
- A${C_2}{H_2}$
- B${C_2}{H_4}$
- ✓${C_2}{H_6}$
- D${C_2}{H_2}B{r_2}$
✓
Answer
Correct option: C.
${C_2}{H_6}$
c
Bond length is defined as the distance between two atoms that are participating in a bond.
Bond length is defined as the distance between two atoms that are participating in a bond.
We can also understand the bond length with the help of the $s$ character.
Higher the $s$-character lesser is the bond length.
This is because higher $s$ character implies that the electrons that are bonded pairs are closely held together, thus making the bond length small as well as strong.
Hybridisation of $C _2 H _6$ is $sp ^3$
The $s$ character in $C _2 H _6$ (Ethane) is: $\frac{1}{4} \times 100=25 \,\%$ which is the least amongst the other given compounds.
Therefore the $C - H$ bond length of $C _2 H _6$ is the longest.
Hence it is the correct option.
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
Cylohexene $image$ is __________type of an organic compound.
→The sulphate of a metal has the formula ${M_2}{\left( {S{O_4}} \right)_3}.$ The formula for its phosphate will be
→What is the molar solubility of :- $Ag_2CO_3 (K_{sp} = 4 \times 10^{-13})$ in $0.1\, M\,Na_2CO_3$ solution?
→According to Bronsted-Lowry concept, base is a substance which is
In paper chromatography which of the following is present :
If $X$ and $Y$ are the second ionisation potentials of alkali and alkaline earth metals of same period, then :
→Amongst the following element with their electronic configuration given below, which one is having highest ionisation energy ?
Following reaction describes the rusting of iron
→$4Fe + 3{O_2}\, \to \,4F{e^{3 + }} + 6{O^{2 - }}$
Which one of the following statement is incorrect
In the reaction, ${H_2}C = C{H_2}\xrightarrow{\begin{subarray}{l}
{\text{cold alkaline}} \\
{\text{KMn}}{{\text{O}}_{\text{4}}}
\end{subarray} }(A)$ Product $A$ is :
→{\text{cold alkaline}} \\
{\text{KMn}}{{\text{O}}_{\text{4}}}
\end{subarray} }(A)$ Product $A$ is :
Which of the following pairs of $d-$ orbitals have electron density along the axis?
→