MCQ
The $IUPAC$ name of the compound is _________.
  • A
    $5-$formylhex$-{2-}$en$-{3-}$one
  • B
    $5-$methyl${-4}-$oxohex$-{2-}$en${-5}-$al
  • C
    ${3-}$keto$-{2-}$methylhex${-5}-$enal
  • ${3-}$keto$-{2-}$methylhex${-4}-$enal

Answer

Correct option: D.
${3-}$keto$-{2-}$methylhex${-4}-$enal
d
The IUPAC name of this compound is $3$-keto-$2$-methylhex-$4$-enal

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

Similar questions

Which of the following mixture of solution can function as a buffer solution ?
$B$ has a smaller first ionization enthalpy than $Be$. Consider the following statements :

$(I)$ It is easier to remove $2 \mathrm{p}$ electron than $2 \mathrm{s}$ electron

$(II)$ $2 \mathrm{p}$ electron of $\mathrm{B}$ is more shielded from the nucleus by the inner core of electrons than the $2 s$ electrons of $Be.$

$(III)\; 2 s$ electron has more penetration power than $2 \mathrm{p}$ electron.

$(IV)$ atomic radius of $\mathrm{B}$ is more than $\mathrm{Be}$

(Atomic number $\mathrm{B}=5, \mathrm{Be}=4$ )

The correct statements are

The condition for minimum change in $pH$ for a buffer solution is
$\begin{array}{*{20}{c}}
  {Ph - C{H_2} - CH - C{H_3}\xrightarrow{{B{r_2}/hv}}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,} \\ 
  {D\,\,\,\,\,\,\,\,\,\,} 
\end{array}$

Product of the above reaction will be

Soft heavy metal melts at ${30\,^o}C$ and is used in making heat sensitive thermometers the metal is
$K_{SP}$ of $Mg(OH)_2$ is $1 \times 10^{-12}$. $0.01\,M \,MgCl_2$ will show precipitation in a  solution of $pH$  reater than:-
The electron affinity value are negative for :

$A$. $\mathrm{Be} \rightarrow \mathrm{Be}^{-}$

$B$. $\mathrm{N} \rightarrow \mathrm{N}^{-}$

$C$. $\mathrm{O} \rightarrow \mathrm{O}^{2-}$

$D$. $\mathrm{Na} \rightarrow \mathrm{Na}^{-}$

$E$. $\mathrm{Al} \rightarrow \mathrm{Al}^{-}$

Choose the most appropriate answer from the options given below :

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R).$

Assertion $(A) :$ Treatment of bromine water with propene yields $1-$bromopropan$-2-$ol.

Reason $(R):$ Attack of water on bromonium ion follows Markovnikov rule and results in $1-$bromopropan$-2-$ol.

In the light of the above statements, choose the most appropriate answer from the options given below:

Graph in between heat capacity at constant pressure and temperature for a monatomic ideal gas
At a given temperature, the equilibrium constant for reaction $PC{l_5}_{(g)}$ $\rightleftharpoons$ $PC{l_3}_{(g)} + C{l_2}_{(g)}$ is $2.4 \times {10^{ - 3}}$. At the same temperature, the equilibrium constant for reaction $PC{l_3}_{(g)} + C{l_2}_{(g)}$ $\rightleftharpoons$ $PC{l_5}_{(g)}$ is