QBManager

ALCOHOLS, PHENOLS AND ETHER

15400 When phenol is reacted with $C H C l_{3}$ and $N a O H$ followed by acidification, salicyldehyde is obtained. Which of the following species are involved in the above mentioned reaction as inter mediate

1

2

3

4 All of these

ALCOHOLS, PHENOLS AND ETHER

15401 The order of solubility of alkanols in water is

1 Propanol < Butanol > Pentanol

2 Propanol > Butanol > Pentanol

3 Propanol > Butanol < Pentanol

4 Propanol = Butanol = Pentanol

ALCOHOLS, PHENOLS AND ETHER

15402 In the following compounds. The order of acidity is

1

I I I > I V > I > I I

2

I > I V > I I I > I I

3

I I > I > I I I > I V

4

I V > I I I > I > I I

Explanation:

(d) $I V > I I I > I > I I .$
$- N O_{2}$ group is electron withdrawing group while $- C H_{3}$ group is electron releasing group.

ALCOHOLS, PHENOLS AND ETHER

15403 Butanal with dilute $N a O H$ gives

1

\begin{matrix} \begin{matrix} O H \\ | \end{matrix} \\ C H_{3} C H_{2} C H_{2} C C H_{2} \\ | \\ H \end{matrix} C H_{2} C H_{2} C H_{2} C H O

2

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C C H_{2} C H_{2} C H_{2} C H O \end{matrix}

3

O H C C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H O

4

\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}

Explanation:

(d) $2 C H_{3} - C H_{2} - C H_{2} - C H O + dil . N a O H \to$
$\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}$

ALCOHOLS, PHENOLS AND ETHER

15400 When phenol is reacted with $C H C l_{3}$ and $N a O H$ followed by acidification, salicyldehyde is obtained. Which of the following species are involved in the above mentioned reaction as inter mediate

1

2

3

4 All of these

ALCOHOLS, PHENOLS AND ETHER

15401 The order of solubility of alkanols in water is

1 Propanol < Butanol > Pentanol

2 Propanol > Butanol > Pentanol

3 Propanol > Butanol < Pentanol

4 Propanol = Butanol = Pentanol

ALCOHOLS, PHENOLS AND ETHER

15402 In the following compounds. The order of acidity is

1

I I I > I V > I > I I

2

I > I V > I I I > I I

3

I I > I > I I I > I V

4

I V > I I I > I > I I

Explanation:

(d) $I V > I I I > I > I I .$
$- N O_{2}$ group is electron withdrawing group while $- C H_{3}$ group is electron releasing group.

ALCOHOLS, PHENOLS AND ETHER

15403 Butanal with dilute $N a O H$ gives

1

\begin{matrix} \begin{matrix} O H \\ | \end{matrix} \\ C H_{3} C H_{2} C H_{2} C C H_{2} \\ | \\ H \end{matrix} C H_{2} C H_{2} C H_{2} C H O

2

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C C H_{2} C H_{2} C H_{2} C H O \end{matrix}

3

O H C C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H O

4

\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}

Explanation:

(d) $2 C H_{3} - C H_{2} - C H_{2} - C H O + dil . N a O H \to$
$\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}$

ALCOHOLS, PHENOLS AND ETHER

15400 When phenol is reacted with $C H C l_{3}$ and $N a O H$ followed by acidification, salicyldehyde is obtained. Which of the following species are involved in the above mentioned reaction as inter mediate

1

2

3

4 All of these

ALCOHOLS, PHENOLS AND ETHER

15401 The order of solubility of alkanols in water is

1 Propanol < Butanol > Pentanol

2 Propanol > Butanol > Pentanol

3 Propanol > Butanol < Pentanol

4 Propanol = Butanol = Pentanol

ALCOHOLS, PHENOLS AND ETHER

15402 In the following compounds. The order of acidity is

1

I I I > I V > I > I I

2

I > I V > I I I > I I

3

I I > I > I I I > I V

4

I V > I I I > I > I I

Explanation:

(d) $I V > I I I > I > I I .$
$- N O_{2}$ group is electron withdrawing group while $- C H_{3}$ group is electron releasing group.

ALCOHOLS, PHENOLS AND ETHER

15403 Butanal with dilute $N a O H$ gives

1

\begin{matrix} \begin{matrix} O H \\ | \end{matrix} \\ C H_{3} C H_{2} C H_{2} C C H_{2} \\ | \\ H \end{matrix} C H_{2} C H_{2} C H_{2} C H O

2

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C C H_{2} C H_{2} C H_{2} C H O \end{matrix}

3

O H C C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H O

4

\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}

Explanation:

(d) $2 C H_{3} - C H_{2} - C H_{2} - C H O + dil . N a O H \to$
$\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}$

ALCOHOLS, PHENOLS AND ETHER

15400 When phenol is reacted with $C H C l_{3}$ and $N a O H$ followed by acidification, salicyldehyde is obtained. Which of the following species are involved in the above mentioned reaction as inter mediate

1

2

3

4 All of these

ALCOHOLS, PHENOLS AND ETHER

15401 The order of solubility of alkanols in water is

1 Propanol < Butanol > Pentanol

2 Propanol > Butanol > Pentanol

3 Propanol > Butanol < Pentanol

4 Propanol = Butanol = Pentanol

ALCOHOLS, PHENOLS AND ETHER

15402 In the following compounds. The order of acidity is

1

I I I > I V > I > I I

2

I > I V > I I I > I I

3

I I > I > I I I > I V

4

I V > I I I > I > I I

Explanation:

(d) $I V > I I I > I > I I .$
$- N O_{2}$ group is electron withdrawing group while $- C H_{3}$ group is electron releasing group.

ALCOHOLS, PHENOLS AND ETHER

15403 Butanal with dilute $N a O H$ gives

1

\begin{matrix} \begin{matrix} O H \\ | \end{matrix} \\ C H_{3} C H_{2} C H_{2} C C H_{2} \\ | \\ H \end{matrix} C H_{2} C H_{2} C H_{2} C H O

2

\begin{matrix} O \\ | | \\ C H_{3} C H_{2} C H_{2} C C H_{2} C H_{2} C H_{2} C H O \end{matrix}

3

O H C C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H_{2} C H O

4

\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}

Explanation:

(d) $2 C H_{3} - C H_{2} - C H_{2} - C H O + dil . N a O H \to$
$\begin{matrix} \begin{matrix} O H C H O \\ | | \end{matrix} \\ C H_{3} C H_{2} C H_{2} - C - C H - C H_{2} - C H_{3} \\ | \\ H \end{matrix}$

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