CBSE Questions for Class 12 Medical Chemistry Aldehydes, Ketones And Carboxylic Acids Quiz 4 - MCQExams.com

IUPAC name of $$HOOCCH_2C(OH)(COOH)CH_2COOH$$ is
  • citric acid
  • 2-Hydroxy-1,2,3-propanetri-carboxylicacid
  • 2-Hydroxy-1,2,3-propanoic acid
  • hexanetrioic acid
What is the IUPAC name of $$CH_3CH=CH-COOH$$?
  • 2-Butenoic acid
  • Crotonic acid
  • 2-Butanoic acid
  • 3-Butenoic acid
IUPAC name of $$\begin{matrix} C{ H }_{ 3 }- & CH &-C{ H }_{ 2 }- CH -C{ H }_{ 3 } \\  & | &  | &  \\  & OH &  COOH &  \end{matrix}$$ is:
  • 4-hydroxy-1-methylpentanoic acid
  • 4-hydroxy-2-methylpentanoic acid
  • 2-hydroxy-4-methylpentanoic acid
  • 2-hydroxy-2-methylpentanoic acid
The compound $$X$$ on oxidation gives a mixture of acetic acid and formic acid, while $$Y$$ on oxidation forms only propionic acid. $$X$$ and $$Y$$ are :
  • $$X$$: $$CH_3-CH(OH)-CH_3$$, $$Y$$ : $$CH_3-CO-CH_3$$
  • $$X$$ : $$CH_3 - CH_2 - CH_2 - CHO$$, $$Y$$ : $$CH_3 - CO - CH_3$$
  • $$X$$ : $$CH_3 - CO - CH_3$$, $$Y$$ : $$CH_3 - CH_2 - CHO$$
  • $$X$$ : $$CH_3 - CO - CH_3$$, $$Y$$ : $$CH_3 - O - CH_2 - CH_3$$
As the carbon chain increases in aldehyde and ketone compounds, solubility in water:
  • decreases
  • increases
  • may increase
  • may decrease
Formaldehyde is used as formalin in industries:
  • to preserve biological specimens
  • to prepare bakelite
  • both $$A$$ and $$B$$
  • none of these
What is the structure of carbonyl group?
  • Tetrahedral
  • Trigonal planar
  • Pyramidal
  • Linear

In the sequence of the given reactions, the starting compound $$P$$ is:
571283_9a8aed71aa74425cb7bbce241bc71a70.png
  • o-nitro toluene
  • m-nitro toluene
  • o-bromo toluene
  • p-nitro toluene
Which of the following aldehyde is mostly used as plasticizer?
  • Formaldehyde
  • Acetaldehyde
  • Butyraldehyde
  • Benzaldehyde
Which is the commercially largest produced aldehyde?
  • Acetaldehyde
  • Formaldehyde
  • Benzaldehyde
  • Butyraldehyde
Which of the following is used as a food preservative?
  • Aldehydes
  • Ketones
  • Carboxylic acid
  • Alcohol
IUPAC name of the compound is:
591965_ae622998139e4d03be9b2bab24065d19.png
  • 2-methylbenzoic acid
  • 3-methyl benzenecarboxilic acid
  • 2-methylbenzeneoic acid
  • 3-methylbenzoic acid
Which of the Following reagents give reductive addition reaction to aldehyde and ketone ?
  • $$LiAlH_4$$
  • $$NaBH_4$$
  • Both A and B
  • None of them
IUPAC name of compound is:
591969_739fd33d311e412f86be712f36101599.png
  • 3,3-dimethylpropanoic acid
  • 2-methylbutanoic acid
  • 3-Methylbutanoic acid
  • none of these
IUPAC name of the compound is :
591981_6ded27871c0c4f54ae5f17567f710596.png
  • butenoic acid
  • butanoic acid
  • 2-butynoic acid
  • none of these
IUPAC naming of the compound is:

591956_b3541f9b76d7431ba64c241109ccfe27.png
  • 3-octanoic acid
  • octane-3-oic acid
  • 2-ethylhexanoic acid
  • 3-ethylhexanoic acid
$$Ph-\underset{OH}{\underset{|}{C}H}-\overset{O}{\overset{||}C}-OH$$
Correct IUPAC naming of given acid is:
  • 1-hydroxy-1-phenylethanoic acid
  • 2-hydroxy-2-phenylethanoic acid
  • 2-phenyl hydroxy ethanoic acid
  • none of these
_______ is/are used in the manufacture of bakelite polymer.
  • Propyl alcohol
  • Phenol
  • Formaldehyde
  • both B and C
The correct IUPAC name of the given compound is:
592109_240fb8ea5eba4f4bb9078741b53a1139.png
  • 2-phenyl-2-methylpropanoic acid
  • 2-phenyl-2,2-dimethylethanoic acid
  • isopropyl benzanoic acid
  • none of these
Which of the following does not uses formaldehyde in its preparation?
  • Melamine polymer
  • Bakelite
  • PHBV
  • preservation of biological specimens
A major constituent of vinegar is:
  • Methanoic acic
  • Benzoic acid
  • Ethanoic acid
  • Picric acid
Which of the following doesn't use acetaldehyde as a starting material in its preparation?
  • Ethyl acetate
  • Ethanoic acid
  • Methanoic acid
  • Drugs
Formalin is used in the preparation of:
  • bakelite
  • nylon
  • styrene
  • teflon
Formalin is:
  • $$60$$% solution of formaldehyde
  • $$40$$% solution of formaldehyde
  • $$30$$% solution of formaldehyde
  • $$50$$% solution of formaldehyde
The percentage of formaldehyde in formalin is:
  • $$40$$%
  • $$30$$%
  • $$20$$%
  • $$10$$%
Which one of the following contains either aldehyde or ketones in it?
  • Vanillin
  • Acetone
  • Camphor
  • Formalin
Which of the following aldehyde is very much used in perfumery and in dye industries?
  • Formaldehyde
  • Acetaldehyde
  • Benzaldehyde
  • Butyraldehyde
Manufacture of nylon$$-6,6$$ uses:
  • hexanoic acid
  • pentanoic acid
  • hexanedioic acid
  • acetic acid
Number of moles of oxygen that one mole of benzoic acid uses in the production of phenol by oxidative decarboxylation?
  • $$3/2$$
  • $$1$$
  • $$1/2$$
  • $$2$$
Soaps and detergent industries uses:
  • lower fatty acids
  • higher fatty acids
  • esters
  • alcohols
Which  is a common standard for calibrating a bomb calorimeter in teaching laboratories?
  • Acetic acid
  • Benzoic acid
  • Picric acid
  • Phenol
Sodium benzoate has it's application in:
  • food preservation
  • pharmacy
  • fireworks
  • fuel in whistle mix
The IUPAC name of the compound is:
601747_2d19ab1a31524d4f82c5bcaf48e61ef8.png
  • 2,4-dimethylpentanoic acid
  • 2,3-dimethylpentanoic acid
  • 1,4-dimethylpentanoic acid
  • 3,4-dimethylpentanoic acid
Reduction reactions of carbonyl compounds is known to be :
  • nucleophilic addition
  • nucleophilic substitution
  • addition reaction
  • elimination reaction
Acetic acid is present in vinegar. Curd contains ______ .
  • lactic acid
  • tartaric acid
  • picric acid
  • None of the above
Acetone is used:
  • for extraction of essential oils
  • as a constituent of liquid nail polish
  • both A and B
  • none of these
Which of the following can be used as a solvent for cellulose acetate, cellulose nitrate, and celluloide?
  • Formaldehyde
  • Acetaldehyde
  • Acetic acid
  • Acetone
________ is used in the preparation of chloroform, sulphonal, cordite etc.
  • formalin
  • ethyl alcohol
  • acetone
  • none of these
Formaldehyde is used :
  • for preserving biological specimens
  • for the preparation of urotropine
  • in the manufacture of bakelite
  • all of these
How does acetaldehyde react with the following reagents ?
  • Dilute aqueous caustic soda
  • Hydrazine
  • Ammoniacal silver nitrate
  • Phosphorus pentachloride.
Out of aldehyde and ketones, which is more reactive towards nucleophilic addition?
  • Aldehyde
  • Ketone
  • Equally reactive
  • Cannot be predicted
Which of the following is used for preserving biological specimens?
  • Formaldehyde
  • Ether
  • Ethyl alcohol
  • None of these
Which of the following chemical is used in removing ink stain from clothes?
  • Ethyl alcohol
  • Glycol
  • Banzoic acid
  • Oxalic acid
Which acid is used in medicine for the treatment of gout?
  • Hydrochloric acid
  • Methanoic acid
  • Ethanoic acid
  • None of these
Formalin is _______ % solution of formaldehyde in water
  • 10
  • 20
  • 40
  • 60
Which of the following is the flavouring agent for food, beverages etc?
  • Acetone
  • Formaldehyde
  • Benzaldehyde
  • Phenol
Which of the following is correct?
  • Formic acid is used in medicine for the treatment of gout
  • Propanoic acid is used as an antiseptic in the preservation of fruit juice
  • Ethanoic acid is a coagulating agent in rubber industry
  • None of these
Which acid is used in rubber industry as a coagulating agent?
  • Methanoic acid
  • Ethanoic acid
  • Propanoic acid
  • Butanoic acid
Benzaldehyde is used:
  • as a flavouring agent for food
  • in the manufacture of triphenylmethane dyes like malachite green
  • as a starting material for the preparation of cinnamic acid
  • all of these
Which of the following statement is true?
  • Benzaldehyde is used in perfumery industry
  • Formaldehyde is used for silvering mirrors
  • Acetone is used as a commercial solvent
  • All of the above
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