Alcohols Phenols and Ethers Test

Result

Alcohols Phenols and Ethers Test - 70

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Weekly Quiz Competition

Question 1
1 / -0

A

B

C

D

Solution

When alcohols are heated with conc. $$H_2SO_4$$, they undergo dehydration to form alkenes.
formation of alkenes depends upon two factors :-
1) Dehydration of alcohols occurs through internmeatiate carbocation formation and carbocation stability follows the order $$3^o > 2^o > 1^o $$. So, $$3^o$$ carbonation intermediate will be most stable than $$2^o$$ and $$1^o$$.
2) Saytzeff rule : - More highly subsituted alkene is the major product.
Question 2
1 / -0

Molecule which does not oxidise using PCC?

A

B

C

D

Solution
Question 3
1 / -0

In order to obtain diethyl ether from ethanol, the latter is taken in:

A
In equal amount of sulphuric acid

B
In slightly lesser amount of sulphuric acid

C
In excess amount of sulphuric acid

D
In far lesser amount of sulphuric acid

Solution
Question 4
1 / -0

The major product is:

A

B

C

D
Question 5
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Which one of the following will produce primary alcohol by reacting with $$CH_3MgI$$?

A
Ethylene oxide

B
Ethyl acetate

C
Methyl cyanide

D
Acetone
Question 6
1 / -0

The product formed in the following reaction is:

A

B

C

D
Question 7
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Dehydration of alcohol usually goes by

A
$${E_1}$$ mechanism

B
$${{\text{E}}_{{\text{2}}\,}}$$ mechanism

C
$${{\text{E}}_{\text{1}}}{\text{CB}}$$ mechanism

D
$${{\text{S}}_{\text{N}}}2$$ mechanism
Question 8
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The product of P is.

A

B

C

D
Question 9
1 / -0

Compare acidic strength of the following.

A
$$R > Q > P$$

B
$$P > Q > R$$

C
$$Q > P > R$$

D
$$P > Q < R$$

Solution
Question 10
1 / -0

What is the total number of carbon atoms in $$P_1$$ to $$P_7$$ products ?.

A
$$91$$

B
$$92$$

C
$$93$$

D
$$94$$