MCQ
The number of possible structural alkynes with molecular formula, $C_5H_8$ is
- A$2$
- ✓$3$
- C$4$
- D$5$
✓
Answer
Correct option: B.
$3$
b
$(1)$ $C - C - C - C \equiv C$ $(2)$ $C - C - C \equiv C - C$
$(1)$ $C - C - C - C \equiv C$ $(2)$ $C - C - C \equiv C - C$
$(3)$ $\begin{array}{*{20}{c}}
{C\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,} \\
{C - C - C \equiv C}
\end{array}$
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
The oxidation number of $H$ in $KH, MgH_2$ and $NaOH$ are respectively
→Select the correct order of bond angle ?
$IUPAC$ name of ${(C{H_3})_3}C - CH = C{H_2}$ is
→Cyclic hydrocarbon molecule A has all the carbon and hydrogens in a single plane. All the carbon-carbon bonds are of same length and less that $1.54\,\mathop A\limits^o $ but more than $1.34\,\mathop A\limits^o $. $C - C - C$ bond angle will be
→${H_2}$ evolved at $STP$ on complete reaction of $27\, g$ of Aluminium with excess of aqueous $NaOH$ would be ............ $\mathrm{L}$
→Which of the following statement is correct about $A$ and $B$ ?
→Gasoline is obtained from crude petroleum oil by its
Maximum carbon-carbon bond distance is found in
The $IUPAC$ name of (figure) is
→$2{x_{6(g)}} \rightleftharpoons 4{x_{3(g)}}$
→a $20\ L$ box containing $X_6$ and $X_3$ at equilibrium at $1500\ K$ . $K_p = 4 \times 10^{18}\ atm$ . Assuming ${P_{{x_3}}} > > {P_{{x_6}}}$ and total pressure is $10\ atm$ .The partial pressure of $X_6$ will be