231677 Which compound does not show tautomerism?

1 ${\mathrm{CH}}_3-{\mathrm{COCH}}_2{\mathrm{COCH}}_3$

2 ${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{CH}=\mathrm{NaOH}$

3

4

231680 The correct order of increasing $\mathrm{C}-\mathrm{O}$ bond length $\mathrm{CO},{\mathrm{CO}}_3^{2-},{\mathrm{CO}}_2$ is:

231681 The most stable carbanion among the following is:

1

2

3

4

231682 Most stable carbonations among the following is:

1

2

3

4 ${}^{+}{\mathrm{CH}}_3$

231677 Which compound does not show tautomerism?

1 ${\mathrm{CH}}_3-{\mathrm{COCH}}_2{\mathrm{COCH}}_3$

2 ${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{CH}=\mathrm{NaOH}$

3

4

231680 The correct order of increasing $\mathrm{C}-\mathrm{O}$ bond length $\mathrm{CO},{\mathrm{CO}}_3^{2-},{\mathrm{CO}}_2$ is:

231681 The most stable carbanion among the following is:

1

2

3

4

231682 Most stable carbonations among the following is:

1

2

3

4 ${}^{+}{\mathrm{CH}}_3$

231677 Which compound does not show tautomerism?

1 ${\mathrm{CH}}_3-{\mathrm{COCH}}_2{\mathrm{COCH}}_3$

2 ${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{CH}=\mathrm{NaOH}$

3

4

231680 The correct order of increasing $\mathrm{C}-\mathrm{O}$ bond length $\mathrm{CO},{\mathrm{CO}}_3^{2-},{\mathrm{CO}}_2$ is:

231681 The most stable carbanion among the following is:

1

2

3

4

231682 Most stable carbonations among the following is:

1

2

3

4 ${}^{+}{\mathrm{CH}}_3$

231677 Which compound does not show tautomerism?

1 ${\mathrm{CH}}_3-{\mathrm{COCH}}_2{\mathrm{COCH}}_3$

2 ${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{CH}=\mathrm{NaOH}$

3

4

231680 The correct order of increasing $\mathrm{C}-\mathrm{O}$ bond length $\mathrm{CO},{\mathrm{CO}}_3^{2-},{\mathrm{CO}}_2$ is:

231681 The most stable carbanion among the following is:

1

2

3

4

231682 Most stable carbonations among the following is:

1

2

3

4 ${}^{+}{\mathrm{CH}}_3$