You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Synthesis of Phenols-I

There are thr...

Question

There are three alcohols $x, y, z$ which have $2, 1$ and $0$ alpha hydrogen atom(s) respectively. Which does not give Lucas test immediately?

x

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

y

No worries! We‘ve got your back. Try BYJU‘S free classes today!

z

No worries! We‘ve got your back. Try BYJU‘S free classes today!

All the three do not give test

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $x$
Lucas reagent is $Z n C l_{2}$ and $H C l$ .

Primary alcohols do not react with Lucas reagent.

Since ' $x$ ' contains two alpha hydrogens, it must be a primary alcohol.

$R - C H_{2} - O H$ is primary alcohol which have 2 alpha hydrogen.

Option A is correct.

Suggest Corrections

Similar questions

Q. There are four alcohols P, Q, R, and S that have 3, 2, 1, and 0

α -

hydrogen atoms respectively. Which one would not give any colour in Victor Meyer's test?

Q. Alkene (X)

(C_{5} H_{1} 0)

on ozonolysis gives a mixture of two compounds (Y) and (Z). Compound (Y) gives positive Fehling's test and iodoform test. Compound (Z) does not give Fehling's test but give iodoform test. Compounds (X), (Y) and (Z) are?

Q. An aromatic compound

(X)

(C_{8} H_{8} O)

gives positive 2,4-DNP test. It gives a yellow precipitate of compound

(Y)

on reaction with iodine and sodium hydroxide solution.

(X)

does not give Tollen's test on oxidation under drastic conditions. It gives a carboxylic acid

(Z)

(C_{7} H_{6} O_{2})

(Z)

is also formed with

(Y)

during the reaction.

(X), (Y)

and

(Z)

respectively are:

There are four alcohols P, Q, R and S which have 3, 2, 1 and zero alpha hydrogen atom(s) respectively. Which one of the following will not respond to victor- Meyer's test?

Q. There are four alcohols P, Q, R, and S that have 3, 2, 1, and 0

α -

hydrogen atoms respectively. Which one would not give any colour in Victor Meyer's test?

Join BYJU'S Learning Program

There are three alcohols x, y, z which have 2, 1 and 0 alpha hydrogen atom(s) respectively. Which does not give Lucas test immediately?

The correct option is A xLucas reagent is ZnCl2 and HCl.Primary alcohols do not react with Lucas reagent.Since 'x' contains two alpha hydrogens, it must be a primary alcohol.R−CH2−OH is primary alcohol which have 2 alpha hydrogen.Option A is correct.

There are three alcohols $x, y, z$ which have $2, 1$ and $0$ alpha hydrogen atom(s) respectively. Which does not give Lucas test immediately?

The correct option is A $x$
Lucas reagent is $Z n C l_{2}$ and $H C l$ .

Primary alcohols do not react with Lucas reagent.

Since ' $x$ ' contains two alpha hydrogens, it must be a primary alcohol.

$R - C H_{2} - O H$ is primary alcohol which have 2 alpha hydrogen.

Option A is correct.