The most basic nitrogen in the following compounds is

             

1.  I

2.  II

3.  III

4.  IV

The most stable carbocation among the following is:

1.		2.
3.		4.

The order of basicity of the following compounds is:

1.  I > II > IV > III

2.  IV > II > I > III

3.  III > II > I > IV

4.  I > II > III > IV

The order of basicity of

in water is

1.  IV < III < I < II

2.  II < I < IV < III

3.  IV < I < III < II

4.  II < III < I < IV

The correct order of the leaving group ability is:

Which of the following molecules cannot show geometric isomerism?

1.  ${\mathrm{CH}}_3\mathrm{CH}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\mathrm{NOH}$

2.  ${\left({\mathrm{CH}}_3\right)}_2\mathrm{C}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\mathrm{NOH}$

3.  HO - C = N - OH

4.  

The order of acidity of compounds I - IV, is

1.  I < III < II < IV

2.  IV < I < II < III

3.  III < I < II < IV

4.  II < IV < III < I

Decreasing order of acidic character for cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV),  will be

1. III>II>IV>I

2. II>III>I>IV

3. II>III>IV>I

4. III>IV>II>I