2- pentanone can be distinguished from 3- pentanone by the reagen… - Vidyadip

MCQ

$2-$ pentanone can be distinguished from $3-$ pentanone by the reagent

A
$2, 4-$ dinitrophenyl hydrazine
B
Tollens reagent
✓
$I_2$ and dil. $NaOH$
D
$NaHSO_3$

✓

Answer

Correct option: C.

$I_2$ and dil. $NaOH$

c
$2-$ Pentanone gives yellow ppt of Iodoform with $I_2 + NaOH$

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

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A neutron having mass of $1.67 \times {10^{ - 27}}kg$ and moving at ${10^8}m/s$ collides with a deutron at rest and sticks to it. If the mass of the deutron is$3.34 \times {10^{ - 27}}kg$then the speed of the combination is

The number of photo-electrons emitted per second from a metal surface increases when

$\frac{1}{2} $ mole of helium gas is contained in a container at $S.T.P.$ The heat energy needed to double the pressure of the gas, keeping the volume constant (specific heat of the gas $ = 3\,J\,g{m^{ - 1}}\,{K^{ - 1}})$ is ...... $J$

Ultraviolet light of wavelength $300 \ nm$ and intensity $1.0 \ watt/m^2$ falls on the surface of a photosensitive material. If $1\%$ of the incident photons produce photoelectrons, then the number of photoelectrons emitted from an area of $1.0\ cm^2$ of the surface is nearly

If six identical cells each having an $e.m.f.$ of $6\,V$ are connected in parallel, the $e.m.f.$ of the combination is ................ $V$

A physical quantity $X$ is given by $X = \frac{{2{k^3}{l^2}}}{{m\sqrt n }}$ The percentage error in the measurements of $k,\,l,\, m$ and $n$ are $1\%, 2\%, 3\%$ and $4\%$ respectively. The value of $X$ is uncertain by .......... $\%$

Select the correct statement about the reflection and refraction of a wave at the interface between the medium $1$ and $2$ the

One femtometer is equivalent to

A shell of mass $200\, gm$ is ejected from a gun of mass $4\, kg$ by an explosion that generates $1.05\, kJ$ of energy. The initial velocity of the shell is $......... \mathrm{ms}^{-1}$

A $10\,m$ long potentiometer wire has a potential gradient of $0.0025\, V/cm$. Calculate the distance of null point when the wire is connected to a $1.025\,V$ standard cell ............... $\mathrm{m}$