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question_answer1)
Reaction of acetaldehyde with HCN followed by hydrolysis gives a compound which shows [MP PET 1997]
A)
Optical isomerism done
clear
B)
Geometrical isomerism done
clear
C)
Metamerism done
clear
D)
Tautomerism done
clear
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question_answer2)
In aldehydes and ketones, carbon of carbonyl group is [MP PMT 1995; RPET 1999, 2000]
A)
\[s{{p}^{3}}\] hybridised done
clear
B)
\[s{{p}^{2}}\] hybridized done
clear
C)
sp hybridised done
clear
D)
Unhybridised done
clear
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question_answer3)
The IUPAC name of the following structure is \[\overset{\overset{C{{H}_{3}}\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{3}}-CH-C-C{{H}_{2}}-C{{H}_{2}}OH}}\,\] [MP PMT 1995]
A)
1-hydroxy 4-methyl 3-pentanone done
clear
B)
2-methyl 5-hydroxy 3-pentanone done
clear
C)
4-methyl 3-oxo 1-pentanol done
clear
D)
Hexanol-1, one-3 done
clear
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question_answer4)
Glyoxal is [BVP 2003]
A)
\[C{{H}_{2}}O-C{{H}_{2}}O\] done
clear
B)
\[\underset{\underset{C{{H}_{2}}OH}{\mathop{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}OH}}\,\] done
clear
C)
\[\underset{\underset{CHO}{\mathop{|\,\,\,\,\,\,\,\,}}\,}{\mathop{CHO}}\,\] done
clear
D)
\[\underset{\underset{CHO\,\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}OH}}\,\] done
clear
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question_answer5)
Aldehydes are isomeric with
A)
Ketones done
clear
B)
Ethers done
clear
C)
Alcohols done
clear
D)
Fatty acids done
clear
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question_answer6)
Which of the following compounds does not contain an \[-OH\] group [CPMT 1982]
A)
Phenol done
clear
B)
Carboxylic acid done
clear
C)
Aldehydes done
clear
D)
Alcohols done
clear
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question_answer7)
IUPAC name of \[C{{H}_{3}}COC{{H}_{3}}\] is [MP PET 1991]
A)
Acetone done
clear
B)
2-propanone done
clear
C)
Dimethyl ketone done
clear
D)
Propanal done
clear
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question_answer8)
What is the compound called if remaining two valencies of a carbonyl group are satisfied by two alkyl groups [CPMT 1990]
A)
Aldehyde done
clear
B)
Ketone done
clear
C)
Acid done
clear
D)
Acid chloride done
clear
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question_answer9)
\[C{{H}_{3}}-\overset{\overset{OH}{\mathop{|\,\,\,}}\,}{\mathop{\underset{\underset{H}{\mathop{|}}\,}{\mathop{C}}\,-}}\,CN\] is
A)
Acetaldehyde cyanohydrin done
clear
B)
Acetone cyanohydrin done
clear
C)
Cyanoethanol done
clear
D)
Ethanol nitrile done
clear
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question_answer10)
Ethanedial has which functional group(s)
A)
One ketonic done
clear
B)
Two aldehydic done
clear
C)
One double bond done
clear
D)
Two double bond done
clear
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question_answer11)
In the group \[\begin{matrix} {{R}'} \\ R \\ \end{matrix}>C=O\] the carbonyl carbon is joined to other atoms by
A)
Two sigma and one pi bonds done
clear
B)
Three sigma and one pi bonds done
clear
C)
One sigma and two pi bonds done
clear
D)
Two sigma and two pi bonds done
clear
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question_answer12)
Which of the following types of isomerism is shown by pentanone [MP PMT 1995]
A)
Chain isomerism done
clear
B)
Position isomerism done
clear
C)
Functional isomerism done
clear
D)
All of these done
clear
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question_answer13)
IUPAC name of \[CC{{l}_{3}}CHO\] is [MP PMT/PET 1988]
A)
Chloral done
clear
B)
Trichloro acetaldehyde done
clear
C)
1, 1, 1-trichloroethanal done
clear
D)
2, 2, 2-trichloroethanal done
clear
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question_answer14)
Which of the following is a mixed ketone [AFMC 1997]
A)
Pentanone done
clear
B)
Acetophenone done
clear
C)
Benzophenone done
clear
D)
Butanone done
clear
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question_answer15)
Chloral is [CPMT 1976, 84]
A)
\[CC{{l}_{3}}CHO\] done
clear
B)
\[CC{{l}_{3}}COC{{H}_{3}}\] done
clear
C)
\[CC{{l}_{3}}COCC{{l}_{3}}\] done
clear
D)
\[CC{{l}_{3}}C{{H}_{2}}OH\] done
clear
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question_answer16)
Carbonyl compounds are usually
A)
Ethers, aldehydes, ketones and carboxylic acids done
clear
B)
Aldehydes, ketones and carboxylic acids done
clear
C)
Aldehydes and ketones done
clear
D)
Carboxylic acids done
clear
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question_answer17)
Acetone and acetaldehyde are [KCET 1998]
A)
Position isomers done
clear
B)
Functional isomers done
clear
C)
Not isomers done
clear
D)
Chain isomers done
clear
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question_answer18)
Which of the aldehyde is most reactive? [DCE 2004]
A)
\[{{C}_{6}}{{H}_{5}}-CHO\] done
clear
B)
\[C{{H}_{3}}CHO\] done
clear
C)
\[HCHO\] done
clear
D)
All the equally reactive done
clear
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