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CHXI13:HYDROCARBONS

317938 ' $X$ ' moles of conc. hydroiodic acid react with acetamide in the presence of red phosphorus at $200^{\circ} C$ to form 1 mole of ethane. Find the value of
' $X$ '.

1 9

2 6

3 3

4 5

CHXI13:HYDROCARBONS

317939 Which of the following should be subjected to Wurtz reaction to obtain the best yield of $n$ - hexane?

1 Ethyl chloride and n - butyl chloride

2 Methyl bromide and n - propyl bromide

3

n

- propyl bromide

4 Ethyl bromide and n - butyl bromide

CHXI13:HYDROCARBONS

317940 How many gram of sodium $(atomic mass 23 u)$ is required to prepare one mole of ethane from methyl chloride by Wurtz reaction?

1 2

2 23

3 11.5

4 46

Explanation:

The Wurtz reaction between methyl chloride and sodium metal in presence of dry ehter can be written as:
$2C H_{3} Cl + 2Na \overset{Dry ether}{\to} \underset{Ethane}{C H_{3} - C H_{3}} + 2NaCl$
$\Rightarrow 2$ moles of sodium metal reacts to give 1 mole of ethane.
Also,
1 mole of Na metal $= 23 g$
$∴ 2$ moles of Na metal $= 23 \times 2 = 46 g$
Thus, $46 g$ of sodium is required to prepare one mole of ethane from methyl chloride by Wurtz reaction.

MHTCET - 2019

CHXI13:HYDROCARBONS

317941 Methane and ethane both can be prepared in
one step by which of the following compound?

1

C_{2} H_{4}

2

{CH}_{3} OH

3

{CH}_{3} Br

4

{CH}_{3} {CH}_{2} OH

Explanation:

$C H_{3} B r$ can form both methane and ethane in one step
supporting img

CHXI13:HYDROCARBONS

317938 ' $X$ ' moles of conc. hydroiodic acid react with acetamide in the presence of red phosphorus at $200^{\circ} C$ to form 1 mole of ethane. Find the value of
' $X$ '.

1 9

2 6

3 3

4 5

CHXI13:HYDROCARBONS

317939 Which of the following should be subjected to Wurtz reaction to obtain the best yield of $n$ - hexane?

1 Ethyl chloride and n - butyl chloride

2 Methyl bromide and n - propyl bromide

3

n

- propyl bromide

4 Ethyl bromide and n - butyl bromide

CHXI13:HYDROCARBONS

317940 How many gram of sodium $(atomic mass 23 u)$ is required to prepare one mole of ethane from methyl chloride by Wurtz reaction?

1 2

2 23

3 11.5

4 46

Explanation:

The Wurtz reaction between methyl chloride and sodium metal in presence of dry ehter can be written as:
$2C H_{3} Cl + 2Na \overset{Dry ether}{\to} \underset{Ethane}{C H_{3} - C H_{3}} + 2NaCl$
$\Rightarrow 2$ moles of sodium metal reacts to give 1 mole of ethane.
Also,
1 mole of Na metal $= 23 g$
$∴ 2$ moles of Na metal $= 23 \times 2 = 46 g$
Thus, $46 g$ of sodium is required to prepare one mole of ethane from methyl chloride by Wurtz reaction.

MHTCET - 2019

CHXI13:HYDROCARBONS

317941 Methane and ethane both can be prepared in
one step by which of the following compound?

1

C_{2} H_{4}

2

{CH}_{3} OH

3

{CH}_{3} Br

4

{CH}_{3} {CH}_{2} OH

Explanation:

$C H_{3} B r$ can form both methane and ethane in one step
supporting img

CHXI13:HYDROCARBONS

317938 ' $X$ ' moles of conc. hydroiodic acid react with acetamide in the presence of red phosphorus at $200^{\circ} C$ to form 1 mole of ethane. Find the value of
' $X$ '.

1 9

2 6

3 3

4 5

CHXI13:HYDROCARBONS

317939 Which of the following should be subjected to Wurtz reaction to obtain the best yield of $n$ - hexane?

1 Ethyl chloride and n - butyl chloride

2 Methyl bromide and n - propyl bromide

3

n

- propyl bromide

4 Ethyl bromide and n - butyl bromide

CHXI13:HYDROCARBONS

317940 How many gram of sodium $(atomic mass 23 u)$ is required to prepare one mole of ethane from methyl chloride by Wurtz reaction?

1 2

2 23

3 11.5

4 46

Explanation:

The Wurtz reaction between methyl chloride and sodium metal in presence of dry ehter can be written as:
$2C H_{3} Cl + 2Na \overset{Dry ether}{\to} \underset{Ethane}{C H_{3} - C H_{3}} + 2NaCl$
$\Rightarrow 2$ moles of sodium metal reacts to give 1 mole of ethane.
Also,
1 mole of Na metal $= 23 g$
$∴ 2$ moles of Na metal $= 23 \times 2 = 46 g$
Thus, $46 g$ of sodium is required to prepare one mole of ethane from methyl chloride by Wurtz reaction.

MHTCET - 2019

CHXI13:HYDROCARBONS

317941 Methane and ethane both can be prepared in
one step by which of the following compound?

1

C_{2} H_{4}

2

{CH}_{3} OH

3

{CH}_{3} Br

4

{CH}_{3} {CH}_{2} OH

Explanation:

$C H_{3} B r$ can form both methane and ethane in one step
supporting img

CHXI13:HYDROCARBONS

317938 ' $X$ ' moles of conc. hydroiodic acid react with acetamide in the presence of red phosphorus at $200^{\circ} C$ to form 1 mole of ethane. Find the value of
' $X$ '.

1 9

2 6

3 3

4 5

CHXI13:HYDROCARBONS

317939 Which of the following should be subjected to Wurtz reaction to obtain the best yield of $n$ - hexane?

1 Ethyl chloride and n - butyl chloride

2 Methyl bromide and n - propyl bromide

3

n

- propyl bromide

4 Ethyl bromide and n - butyl bromide

CHXI13:HYDROCARBONS

317940 How many gram of sodium $(atomic mass 23 u)$ is required to prepare one mole of ethane from methyl chloride by Wurtz reaction?

1 2

2 23

3 11.5

4 46

Explanation:

The Wurtz reaction between methyl chloride and sodium metal in presence of dry ehter can be written as:
$2C H_{3} Cl + 2Na \overset{Dry ether}{\to} \underset{Ethane}{C H_{3} - C H_{3}} + 2NaCl$
$\Rightarrow 2$ moles of sodium metal reacts to give 1 mole of ethane.
Also,
1 mole of Na metal $= 23 g$
$∴ 2$ moles of Na metal $= 23 \times 2 = 46 g$
Thus, $46 g$ of sodium is required to prepare one mole of ethane from methyl chloride by Wurtz reaction.

MHTCET - 2019

CHXI13:HYDROCARBONS

317941 Methane and ethane both can be prepared in
one step by which of the following compound?

1

C_{2} H_{4}

2

{CH}_{3} OH

3

{CH}_{3} Br

4

{CH}_{3} {CH}_{2} OH

Explanation:

$C H_{3} B r$ can form both methane and ethane in one step
supporting img

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