Alcohols Phenols and Ethers Test

Result

Alcohols Phenols and Ethers Test - 50

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Weekly Quiz Competition

Question 1
1 / -0

Absolute alcohol is prepared by :

A
Fractional distillation

B
Steam distillation

C
Azeotropic distillation

D
Vacuum distillation

Solution
Question 2
1 / -0

Which of the following is a secondary alcohol ?

A

B

C

D
$${ CH }_{ 3 }OH\quad $$

Solution

Alcohols can be classified as primary, secondary or tertiary on the basis of the nature of the carbon to which the OH group is attached. This carbon is called carbinol carbon.

Primary alcohol - The carbinol carbon is attached to only one other carbon atom. Example: 1-hexanol

Secondary alcohol – The carbinol carbon is attached to two other carbon atoms. Example: 2-hexanol

Tertiary alcohol - The carbinol carbon is attached to three other carbon atoms. Example: 2-methyl-2-pentanol

$$(CH_3)_2CH-OH$$ Option B is a secondary alcohol.

Whereas Option A is a primary alcohol, Option C is tertiary alcohol, Option D is a primary alcohol

Option B is the correct answer.
Question 3
1 / -0

The product A and B respectively are:

A

B

C

D
no formation of A and B

Solution
Question 4
1 / -0

The increasing order of the boiling points for the following compounds is :

A
$$(III) < (IV) < (II) < (I)$$

B
$$(IV) < (III) < (I) < (II)$$

C
$$(II) < (III) < (IV) < (I)$$

D
$$(III) < (II) < (I) < (IV)$$

Solution
Question 5
1 / -0

Which compound is formed when a mixture of calcium acetate and calcium formate if heated ?

A
$$H_3C-\overset{O}{\overset{||}{C}}-CH_3$$

B
$$H_3C-\overset{O}{\overset{||}{C}}-O-C-CH_3$$

C
$$HCHO$$

D
$$H_3C-CHO$$

Solution
Question 6
1 / -0

Identify the major product formed in the following reaction.

A

B

C

D

Solution
Question 7
1 / -0

Which of the following will undergo dehydration fast?

A

B

C

D

Solution
Question 8
1 / -0

For which of the following ethers, Williamson's synthesis is a favourable method of preparation :

A
$$ { H }_{ 3 }C-\overset { \overset { { CH }_{ 3 } }{ | } }{ \underset { \underset { { CH }_{ 3 } }{ | } }{ C } } -O-\overset { \overset { { CH }_{ 3 } }{ | } }{ \underset { \underset { { CH }_{ 3 } }{ | } }{ C } } -CH_{ 3 }$$

B
$$ CH_2=CH-O-CH=CH_2 $$

C

D
$$ CH_2=CH-CH_2-O-CH_2-CH=CH_2 $$

Solution
Question 9
1 / -0

When the given is heated with conc.$${H}_{2}{SO}_{4}$$ at $$443K$$, the alkene formed is mainly?

A

B

C

D

Solution
Question 10
1 / -0

But-2-ene can be obtained by reacting:

A
1,2-dibromopropane with zinc

B
Ethyl bromide with sodium

C
Ethylidene bromide with zinc

D
n-butyl alcohol with alcoholic KOH

Solution