MCQ
Acetaldehyde cannot give:
- AIodoform test
- ✓Lucas test
- CBenedict test
- DTollens test
✓
Answer
Correct option: B.
Lucas test
b
Acetaldehyde gives positive result with Iodoform test, Benedicts test and Tollen's test which identifies its functional group.Lucas test is given by Alcohols to separate alcohols.
Acetaldehyde gives positive result with Iodoform test, Benedicts test and Tollen's test which identifies its functional group.Lucas test is given by Alcohols to separate alcohols.
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
A mass of $10 \,kg$ is suspended vertically by a rope of length $5 \,m$ from the roof. A force of $30 \,N$ is applied at the middle point of rope in horizontal direction. The angle made by upper half of the rope with vertical is $\theta=\tan ^{-1}\left(x \times 10^{-1}\right)$. The value of $x$ is ................
→$\text { (Given } g =10 \,m / s ^{2} \text { ) }$
A $3.0\; cm$ wire carrying a current of $10 \;A$ is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be $0.27\; T$. What is the magnetic force on the wire?
→A stone is dropped into a lake from a tower $500\, metre$ high. The sound of the splash will be heard by the man approximately after ..... $\sec$
→The acceleration displacement graph of a particle executing $SHM$ is shown in figure. The time period of simple harmonic motion is
→Consider the following statements $A$ to $B$ and identify the correct answer
→A.Polarised light can be used to study the helical surface of nucleic acids.
B.Optics axis is a direction and not any particular line in the crystal
Two cells of emf $E_1$ and $E_2\left(E_1 > E_2\right)$ are connected individually to a potentiometer and their corresponding balancing length are $625 \,cm$ and $500 \,cm$, then the ratio $\frac{E_1}{E_2}$ is ...........
→A stationary sound source $'s'$ of frequency $334\,\, Hz$ and a stationary observer $'O'$ are placed near a reflecting surface moving away from the source with velocity $2\,\, m/sec$ as shown in the figure. If the velocity of the sound waves is air is $V = 330\,\, m/sec$, the apparent frequency of the echo is ... $Hz$
→In the network shown in the following figure, each resistance is $1\,ohm.$ The effective resistance between $A$ and $B$ is
→A drum of radius $R$ and mass $M$, rolls down without slipping along an inclined plane of angle $\theta$. The frictional force
→A horizontal pipe line carries water in a streamline flow.At a point along the tube where the cross-sectional area is $10^{-2}$ $m^2$, the water velocity is $2$ $ms^{^{-1}}$ and the pressure is $8000 $ $Pa$. The pressure of water at another point where the cross-sectional area is $0.5$ $\times 10^{-2}$ $m^2$ is ........ $Pa$
→