Structural Isomerism
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317678 Assertion :
\(\mathrm{HO}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\) exhibits ketoenol tautomerism.
Reason :
Intermediate formed is a carbocation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317679 Which pair of following tautomers called as Diad system?

1 \(\mathrm{H}-\mathrm{O}-\mathrm{C} \equiv \mathrm{N} \rightleftharpoons \mathrm{O}=\mathrm{C}=\mathrm{N}-\mathrm{H}\)
2 \({\text{H}} - {\text{C}} \equiv {\text{N}} \rightleftharpoons {\text{C}}\overleftarrow = {\text{N}} - {\text{H}}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{O} \rightleftharpoons \mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{COCH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5} \rightleftharpoons\)
\(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{CH}-\mathrm{COOC}_{2} \mathrm{H}_{5}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317680 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below:

1 A - Q , B - R, C - P, D - S
2 A - R, B - P, C - S, D - Q
3 A - R, B - S, C - P, D - Q
4 A - S, B - R, C - P, D - Q
JEE - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317681 Which of the following isomerism is shown by ethyl acetoacetate?

1 Geometrical isomerism
2 Keto-enol tautomerism
3 Enantiomerism
4 Diastereoisomerism
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317682 The type of isomerism observed in urea molecule is

1 Chain
2 Position
3 Geometrical
4 Tautomerism
AIIMS - 2007
Join With Us for More Updates
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317678 Assertion :
\(\mathrm{HO}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\) exhibits ketoenol tautomerism.
Reason :
Intermediate formed is a carbocation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317679 Which pair of following tautomers called as Diad system?

1 \(\mathrm{H}-\mathrm{O}-\mathrm{C} \equiv \mathrm{N} \rightleftharpoons \mathrm{O}=\mathrm{C}=\mathrm{N}-\mathrm{H}\)
2 \({\text{H}} - {\text{C}} \equiv {\text{N}} \rightleftharpoons {\text{C}}\overleftarrow = {\text{N}} - {\text{H}}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{O} \rightleftharpoons \mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{COCH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5} \rightleftharpoons\)
\(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{CH}-\mathrm{COOC}_{2} \mathrm{H}_{5}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317680 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below:

1 A - Q , B - R, C - P, D - S
2 A - R, B - P, C - S, D - Q
3 A - R, B - S, C - P, D - Q
4 A - S, B - R, C - P, D - Q
JEE - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317681 Which of the following isomerism is shown by ethyl acetoacetate?

1 Geometrical isomerism
2 Keto-enol tautomerism
3 Enantiomerism
4 Diastereoisomerism
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317682 The type of isomerism observed in urea molecule is

1 Chain
2 Position
3 Geometrical
4 Tautomerism
AIIMS - 2007
For More Updates join with Us
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317678 Assertion :
\(\mathrm{HO}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\) exhibits ketoenol tautomerism.
Reason :
Intermediate formed is a carbocation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317679 Which pair of following tautomers called as Diad system?

1 \(\mathrm{H}-\mathrm{O}-\mathrm{C} \equiv \mathrm{N} \rightleftharpoons \mathrm{O}=\mathrm{C}=\mathrm{N}-\mathrm{H}\)
2 \({\text{H}} - {\text{C}} \equiv {\text{N}} \rightleftharpoons {\text{C}}\overleftarrow = {\text{N}} - {\text{H}}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{O} \rightleftharpoons \mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{COCH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5} \rightleftharpoons\)
\(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{CH}-\mathrm{COOC}_{2} \mathrm{H}_{5}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317680 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below:

1 A - Q , B - R, C - P, D - S
2 A - R, B - P, C - S, D - Q
3 A - R, B - S, C - P, D - Q
4 A - S, B - R, C - P, D - Q
JEE - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317681 Which of the following isomerism is shown by ethyl acetoacetate?

1 Geometrical isomerism
2 Keto-enol tautomerism
3 Enantiomerism
4 Diastereoisomerism
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317682 The type of isomerism observed in urea molecule is

1 Chain
2 Position
3 Geometrical
4 Tautomerism
AIIMS - 2007
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317678 Assertion :
\(\mathrm{HO}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\) exhibits ketoenol tautomerism.
Reason :
Intermediate formed is a carbocation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317679 Which pair of following tautomers called as Diad system?

1 \(\mathrm{H}-\mathrm{O}-\mathrm{C} \equiv \mathrm{N} \rightleftharpoons \mathrm{O}=\mathrm{C}=\mathrm{N}-\mathrm{H}\)
2 \({\text{H}} - {\text{C}} \equiv {\text{N}} \rightleftharpoons {\text{C}}\overleftarrow = {\text{N}} - {\text{H}}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{O} \rightleftharpoons \mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{COCH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5} \rightleftharpoons\)
\(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{CH}-\mathrm{COOC}_{2} \mathrm{H}_{5}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317680 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below:

1 A - Q , B - R, C - P, D - S
2 A - R, B - P, C - S, D - Q
3 A - R, B - S, C - P, D - Q
4 A - S, B - R, C - P, D - Q
JEE - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317681 Which of the following isomerism is shown by ethyl acetoacetate?

1 Geometrical isomerism
2 Keto-enol tautomerism
3 Enantiomerism
4 Diastereoisomerism
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317682 The type of isomerism observed in urea molecule is

1 Chain
2 Position
3 Geometrical
4 Tautomerism
AIIMS - 2007
Join With Us for More Updates
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317678 Assertion :
\(\mathrm{HO}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\) exhibits ketoenol tautomerism.
Reason :
Intermediate formed is a carbocation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317679 Which pair of following tautomers called as Diad system?

1 \(\mathrm{H}-\mathrm{O}-\mathrm{C} \equiv \mathrm{N} \rightleftharpoons \mathrm{O}=\mathrm{C}=\mathrm{N}-\mathrm{H}\)
2 \({\text{H}} - {\text{C}} \equiv {\text{N}} \rightleftharpoons {\text{C}}\overleftarrow = {\text{N}} - {\text{H}}\)
3 \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{O} \rightleftharpoons \mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{OH}\)
4 \(\mathrm{CH}_{3}-\mathrm{COCH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5} \rightleftharpoons\)
\(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{CH}-\mathrm{COOC}_{2} \mathrm{H}_{5}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317680 Match Column I with Column II.
supporting img

Choose the correct answer from the options given below:

1 A - Q , B - R, C - P, D - S
2 A - R, B - P, C - S, D - Q
3 A - R, B - S, C - P, D - Q
4 A - S, B - R, C - P, D - Q
JEE - 2023
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317681 Which of the following isomerism is shown by ethyl acetoacetate?

1 Geometrical isomerism
2 Keto-enol tautomerism
3 Enantiomerism
4 Diastereoisomerism
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317682 The type of isomerism observed in urea molecule is

1 Chain
2 Position
3 Geometrical
4 Tautomerism
AIIMS - 2007