Change occurs in hybridisation state of carbonyl carbon in nucleophilic addition reaction is :
- A$sp ^2$ to sp
- Bsp to $sp ^2$
- ✓$sp ^2$ to $sp ^3$
- D$sp ^3$ to $sp ^2$
Answer: C.
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Aldehydes, Ketones and Carboxylic Acids question types
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M.C.Q (1 Marks)
51 Q→021 Marks Question
33 Q→032 Marks Questions
21 Q→043 Marks Question
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11 Q→06Fill in the blank.
12 Q→Sample Questions
Aldehydes, Ketones and Carboxylic Acids questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
IUPAC name of 
- APhthalic acid
- ✓Benzene-1, 2-dicarboxylic acid
- CBenzene-1, 2-dioic acid
- DPhenyl-1, 2-dicarboxylic acid
Answer: B.
View full solution →The compound obtained from meadow sweet is :
- ✓Salicyl aldehyde
- BCinnamaldehyde
- CValeraldehyde
- DVanillin
Answer: A.
View full solution →Aldehydes and ketones react with hydroxyl amine to form :
- AHydrogen
- BCyanohydrin
- CSemi-carbazone
- ✓Oxime
Answer: D.
View full solution →Which of the following does not give Cannizzaro reaction :
- A$\left( CH _3\right)_3 C - CHO$
- ✓$\left( CH _3\right)_2 CH - CHO$
- C
- DHCHO
Answer: B.
View full solution →How will you convert benzoic acid into aniline?
Why carboxylic acids have higher boiling point than aldehydes, ketones and even alcohols of comparable molecular mass?
Explain the reaction of $CH _3 CHO$ with $NH _3$.
View full solution →Arrange the various derivatives of aceic acid in the increasing order of their boiling points.
$CH _3 COOC _2 H _5, CH _3 CONH _2,\left( CH _3 CO \right)_2 O , CH _3 COCl$
View full solution →$CH _3 COOC _2 H _5, CH _3 CONH _2,\left( CH _3 CO \right)_2 O , CH _3 COCl$
Why acid anhydride is better than acetyl chloride for the acetylation of compounds containing active hydrogen?
In the above reaction sequence, write the chemical formula and IUPAC name of X and Y.
Explain :
(a) Acetic acid is a weaker acid than formic acid.
(b) Carboxylic acids have higher boiling points than aldehydes of comparable molecular mass.
(a) Acetic acid is a weaker acid than formic acid.
(b) Carboxylic acids have higher boiling points than aldehydes of comparable molecular mass.
Draw the tetrahedral intermediate formed by nucleophilic attack on carbonyl carbon in nucleophilic addition reaction.
In the above reaction sequence, write the chemical formula and name of X and Y.
(i) How will you prepare methanol from formaldehyde without using a reducing agent?
(ii) Why is Rochelle salt used in Fehling's solution?
(ii) Why is Rochelle salt used in Fehling's solution?
Write the equations of the following reactions:
(i) Friedel-Crafts acetylation of benzene.
(ii) Gattermann-Koch aldehyde synthesis.
(iii) Gattermann aldehyde synthesis.
(i) Friedel-Crafts acetylation of benzene.
(ii) Gattermann-Koch aldehyde synthesis.
(iii) Gattermann aldehyde synthesis.
(i) Complete the following reaction :
(ii) Write the structure of two isomers formed by the reaction of acetophenone with hydroxyl amine.
(ii) Write the structure of two isomers formed by the reaction of acetophenone with hydroxyl amine.
Give the required equation for following conversions:
(i) Acetophenone to Benzoic acid
(ii) Propionic acid to Acetic acid.
(i) Acetophenone to Benzoic acid
(ii) Propionic acid to Acetic acid.
Carbonyl group is present in carboxylic acids and their derivatives, yet they do not show the properties of carboxylic group, why?
What happens when :
$(i)$ Acetic acid reacts with chlorine in the presence of red phosphorus?
$(ii)$ Silver acetate reacts with bromine in the presence of inert solvent $\left( CCl _4\right)$ ?
View full solution →$(i)$ Acetic acid reacts with chlorine in the presence of red phosphorus?
$(ii)$ Silver acetate reacts with bromine in the presence of inert solvent $\left( CCl _4\right)$ ?
(a) Why $\alpha$-hydrogen of carbonyl compound are acidic in nature?
(b) Explain aldol condensation reaction of ethanal.
View full solution →(b) Explain aldol condensation reaction of ethanal.
Explain the acidic property of carboxylic acid and dicuss the effect of substituents on their acidity.
Describe the reactions of -COOH group present in carboxylic acids.
How are carboxylic acids prepared from the following compounds? Explain with examples:
(a) Primary alcohol
(b) Acyl halide
(c) Acid anhydride
(d) Grignard reagent
(e) Alkyl benzene.
(a) Primary alcohol
(b) Acyl halide
(c) Acid anhydride
(d) Grignard reagent
(e) Alkyl benzene.
Describe the reactions of carboxylic acids in which C-OH bond is broken.
Fehling solution A consists of an aqueous solution of _________________ .
Sodium benzoate is used as _______________ .
Product obtained in Kolbe's electrolysis reaction is __________________ .
In Hunsdiecker reaction number of carbon atoms _________________ .
Ammonical silver nitrate solution is called _______________ .
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