Alcohols Phenols and Ethers Test

Result

Alcohols Phenols and Ethers Test - 47

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following leads to formation of $${ 1 }^{ 0 }$$ alcohol?

A
$${ CH }_{ 3 }-CH={ CH }_{ 2 }\xrightarrow [ { H }^{ + } ]{ { H }_{ 2 }O } $$

B
$${ CH }_{ 3 }-CH={ CH }_{ 2 }\xrightarrow [ Hg{ \left( OAc \right) }_{ 2 }/THF ]{ Na{ BH }_{ 4 }/{ OH }^{ \ominus } } $$

C
$${ CH }_{ 3 }-CH={ CH }_{ 2 }\xrightarrow [ { B }_{ 2 }{ H }_{ 6 }/THF ]{ { H }_{ 2 }{ O }_{ 2 }/{ OH }^{ \ominus } } $$

D
$${ CH }_{ 3 }-C\equiv C-{ CH }_{ 3 }\xrightarrow [ dil.Hg{ SO }_{ 4 } ]{ dil.{ H }_{ 2 }{ SO }_{ 4 } } $$

Solution

Morbenzene rule $$\rightarrow H^+$$ goes to carbon having more hydrogen among the double bond ones.
Question 2
1 / -0

The IUPAC name of the compound is:

A
3, 4 - dimethyl - 2 - butene - 4 - ol

B
1, 2 - dimethyl - 2- butenol

C
3 - methylpent - 3 - en - 2- ol

D
2, 3 - dimethyl - 3- Pentenol

Solution

For naming a compound, the longest carbon chain is considered and the carbon atom near the functional group is given the first number or priority.

Hence, $$-OH$$ is at second carbon and a double bond is between third carbon. Also, a methyl group is present at the third carbon.

So, the IUPAC name of the compound will be $$3-methyl pent-3-en-2-ol$$.

Hence, option $$C$$ is correct.
Question 3
1 / -0

Which of the following is the best reagent to convert $$1-$$ Methylcyclohexene into $$2-$$ methylcyclohexanol?

A
dil.$$H_2SO_4$$

B
$$Hg(OAc)_2/NaBH_4, H_2O$$

C
$$B_2H_6/H_2O_2, \overset{\ominus}{O}H$$

D
conc. $$H_2SO_4$$

Solution
Question 4
1 / -0

Identify $$Z$$ in the sequence of reaction, $$CH_3CH_2CH = CH_2 \xrightarrow{HBr/H_2O_2} Y \xrightarrow{C_2H_5ON_a} Z$$

A
$$(CH_3)_2CH_2 - O - CH_2CH_3$$

B
$$CH_3(CH_2)_4 - O - CH_3$$

C
$$CH_3CH_2 - CH(CH_3) - O - CH_2CH_3$$

D
$$CH_3 - (CH_2)_3 - O - CH_2CH_3$$

Solution
Question 5
1 / -0

Which of the following ether is not cleaved by HI even at 525K ?

A
$${ C }_{ 6 }{ H }_{ 5 }-O-{ CH }_{ 3 }$$

B
$${ C }_{ 6 }{ H }_{ 5 }-O-{ C }_{ 6 }{ H }_{ 5 }$$

C
$${ C }_{ 6 }{ H }_{ 5 }-O-{ C }_{ 3 }{ H }_{ 7 }$$

D

Solution

Will not cleaned by HI even at $$525k$$ temperature.Cyclic ether don't reaction by HI.
Question 6
1 / -0

Propene is allowed to react with HBr in the presence of benzoyl peroxide, and the product is subsequently heated with aqueous KOH. The final product obtained is:

A
propan-$$2$$-ol

B
propane-$$1, 2$$- diol

C
propan-$$1$$-ol

D
propane-$$1, 3$$- diol

Solution

Propene is allowed to react with $$HBr$$ in the presence of benzoyl peroxide, and the product is subsequently heated with aqueous $$KOH$$. The final product obtained is $$propan-1-ol$$
Question 7
1 / -0

$$\underrightarrow { { H }^{ 2 } } $$

A

B

C

D

Solution

solution is given
Question 8
1 / -0

The final product 'X' is:

A

B

C

D
Question 9
1 / -0

What is $$A$$?

A

B

C

D

Solution

Option A is the correct answer.
As we can see from the given mechanism, the compound at Option A will be formed.
Question 10
1 / -0

A

B

C

D

Solution