Alcohols Phenols and Ethers Test

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Alcohols Phenols and Ethers Test - 38

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Weekly Quiz Competition

Question 1
1 / -0

Common name for methanol is:

A
volemitol

B
rubbing alcohol

C
wood spirit

D
xylitol

Solution

Methanol acquired the name "wood spirit" because it was once produced chiefly as a byproduct of the destructive distillation of wood.

Option C is correct.
Question 2
1 / -0

Phenol reacts with alkali to give:

A
salt

B
water

C
both A and B

D
complex compound

Solution

Phenol is weakly acidic in nature. Hence when it reacts with alkali, it gives a salt and water i.e. the neutralization reaction takes place.
Question 3
1 / -0

Phenol is a:

A
crystalline solid

B
amorphous solid

C
volatile liquid

D
nonvolatile liquid

Solution

The correct option is A.
Phenol is crystalline solid and has a definite melting point.
Question 4
1 / -0

An industrial method for the preparation of methanol is:

A
by catalytic reduction of carbon monoxide

B
by reacting methane with steam in presence of a catalyst

C
by reduction of $$HCHO$$ with $$LiAlH_4$$

D
by reduction of $$HCHO$$ with aqueous $$NaOH$$

Solution

An industrial method for the preparation of methanol is by catalytic reduction of carbon monoxide.
$$ \displaystyle \underset { \displaystyle \text { Synthetic gas } }{\underset { \displaystyle \text { water gas } }{CO+H_2}+H_2} \xrightarrow [ \text { 300 deg C, pressure }]{Cr_2O_3-ZnO} \underset { \displaystyle \text { Methanol } }{CH_3-OH}$$
Question 5
1 / -0

Methanol is called as Marine Methanol beacuse:

A
it is an essential compound for marine life

B
it is mostly obtained from deep sea bed

C
it is used as a marine fuel

D
it serves as a signal indicator for big ships on burning

Solution

Currently, methanol is being developed and utilized as a marine fuel. Interest in methanol as a ship fuel is growing in response to international regulatory changes and cost advantages relative to other fuels. Methanol is an alternative which is sulphur free, has low emissions; perhaps three to four times cheaper than marine distillate fuel; and has a higher score on the International Martine Organization (IMO) energy efficiency design index (EEDI)than LNG or diesel. Globally, Methanol is already in widespread production (~70 million tons per annum) for a multitude of chemical and energy applications, and is one of the world’s most widely shipped chemicals.
Question 6
1 / -0

Reagents used for industrial preparation of methanol are:

A
$$CO+H_2$$

B
$$HCHO+H_2$$

C
$$CO_2+H_2$$

D
$$HCOOH+H_2$$

Solution

Carbon monoxide and hydrogen react over a catalyst to produce methanol. Today, the most widely used catalyst is a mixture of copper and zinc oxides,supported on alumina.At $$5–10$$ MPa ($$50–100$$ atm) and 250 °C (482 °F), the reaction is characterized by high selectivity ($$>99.8$$%).
$$CO + 2H_2 \longrightarrow CH_3OH$$
Question 7
1 / -0

Destructive distillation of wood in the laboratory will result in the formation of :

A
Ethanol

B
Methane

C
Methanol

D
Butane

Solution

Methanol acquired the name "wood spirit" because it was once produced chiefly as a byproduct of the destructive distillation of wood.
Question 8
1 / -0

The other name for Syngas is:

A
Producer gas

B
Water gas

C
Tear gas

D
Fuel gas

Solution

Syngas is also called as water gas which is a mixture of carbon monoxide and hydrogen.
Question 9
1 / -0

Which of the following alcohol has highest solubility in water ?

A
Tertiary butyl alcohol

B
Secondary butyl alcohol

C
Ethylene glycol

D
Glycerol

Solution

More the number of hydroxyl groups in a compound more is the tendency to form hydrogen bonds with water and hence, more will be the solubility.

Thus, among the given, glycerol, because of the presence of more number of hydroxyl groups, readily dissolves in water.
Question 10
1 / -0

When alkyl halide is heated with dry $${ Ag }_{ 2 }O$$, it produces:

A
ester

B
ether

C
ketone

D
alcohol

Solution

Alkyl halide on reaction with dry silver oxide gives ether.

$$\underset { Alkyl \ halide }{ 2RX } +{ Ag }_{ 2 }O\longrightarrow \underset { ether }{ R-O-R } +2AgX$$

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Re-Attempt Weekly Quiz Competition

Alcohols Phenols and Ethers Test - 38

Result

Alcohols Phenols and Ethers Test - 38

Score

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SHARING IS CARING

Question 1

volemitol

rubbing alcohol

wood spirit

xylitol

Solution

Question 2

salt

water

both A and B

complex compound

Solution

Question 3

crystalline solid

amorphous solid

volatile liquid

nonvolatile liquid

Solution

Question 4

by catalytic reduction of carbon monoxide

by reacting methane with steam in presence of a catalyst

by reduction of $$HCHO$$ with $$LiAlH_4$$

by reduction of $$HCHO$$ with aqueous $$NaOH$$

Solution

Question 5

it is an essential compound for marine life

it is mostly obtained from deep sea bed

it is used as a marine fuel

it serves as a signal indicator for big ships on burning

Solution

Question 6

$$CO+H_2$$

$$HCHO+H_2$$

$$CO_2+H_2$$

$$HCOOH+H_2$$

Solution

Question 7

Ethanol

Methane

Methanol

Butane

Solution

Question 8

Producer gas

Water gas

Tear gas

Fuel gas

Solution

Question 9

Tertiary butyl alcohol

Secondary butyl alcohol

Ethylene glycol

Glycerol

Solution

Question 10

ester

ether

ketone

alcohol

Solution

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