The structure of the product is:

1. 2.

3. 4.

Subtopic: Acid Derivatives - Preparation, Properties & Uses |

75%

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2

3

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Q70:

$\overset{HCN}{\to}$ A $\to_{(e x c e s s)}^{K C N}$ B;B is

1.

2.

3.

4.

Subtopic: Aldehydes & Ketones: Preparation & Properties |

73%

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2

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Q71:

Which shows decarboxylation by heating

1.

2.

3.

4.

Subtopic: Carboxylic Acids: Preparation & Properties |

55%

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2

3

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Q72:

The major product is
$\xrightarrow{LiAlH_4}$

1.		2.
3.		4.

Subtopic: Isomers & Reaction Mechanism |

58%

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Q73:

Fehling solution gives red precipitated with

(a) Aromatic aldehyde

(b) Aliphatic aldehyde

(c) Ketone

(d) terminal $α$ -Hydroxy ketone

_{1. b,d}

_{2. a,b}

_{3. a,d}

_{4. b,c}

Subtopic: Aldehydes & Ketones: Preparation & Properties |

67%

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Q74:

and can be distinguished by

1. I₂+NaOH

2. NaSO₃H

3. NaCN/HCl

4. 2,4-DNP

(1) a,b,d

(2) a,b

(3) a,c,d

(4) a,d

Subtopic: Aldehydes & Ketones: Preparation & Properties | Name Reaction |

56%

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Q75:

$\to_{Zn / H_{2} O}^{O_{3} (I mole)}$ P $\to_{∆}^{NaOH}$ Q; Q is

1.

2.

3.

4.

Subtopic: Aldehydes & Ketones: Preparation & Properties | Isomers & Reaction Mechanism |

57%

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Q76:

$\overset{I_{2} + NaOH}{\to}$ x + y(yellow ppt) y $\to_{∆}^{Ag}$ z;z is

1. CH $\equiv$ CH

2. CHI₃

3. Ph-COONa

4. CH₂=CH₂

Subtopic: Aldehydes & Ketones: Preparation & Properties |

66%

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Q77:

$\to_{ii \cdot ∆}^{i \cdot K_{2} {Cr}_{2} O_{7}}$ X; X is

1.

2.

3.

4.

Subtopic: Aldehydes & Ketones: Preparation & Properties |

62%

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2

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4

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Q78:

Hex-3-ene $\to_{2 . Zn, H_{2} O}^{1 . O_{3}}$ A $\to_{H^{+}}^{{KMnO}_{4}}$ B $\to_{Red P}^{{Br}_{2}}$ C $\overset{KOH (aq)}{\to}$ D

D is :-

1. ${CH}_{3} - \underset{Br}{\underset{|}{CH}} - COOH$

2. ${CH}_{3} - {CH}_{2} - CHO$

3. ${CH}_{3} - \underset{Br}{\underset{|}{CH}} - CHO$

4. ${CH}_{3} - \underset{O H}{\underset{|}{CH}} - COOH$

Subtopic: Aldehydes & Ketones: Preparation & Properties | Carboxylic Acids: Preparation & Properties |

78%

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The structure of the product is:

1. 2.

3. 4.

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The structure of the product is:

1. 2.

3. 4.