231983 Which of the following are structural pairs?
A. ${\mathrm{SO}}_4^{2-}$ and ${\mathrm{CrO}}_4^{2-}$
B. ${\mathrm{SiCl}}_4$ and ${\mathrm{TiCl}}_4$
C. ${\mathrm{NH}}_3$ and ${\mathrm{NO}}_3$
D. ${\mathrm{BCl}}_3$ and ${\mathrm{BrCl}}_3$

231985 Which of the following is optically inactive?

1

2

3

4 None of these

231988 Which one of the following compounds has asymmetric carbon in it ?

231983 Which of the following are structural pairs?
A. ${\mathrm{SO}}_4^{2-}$ and ${\mathrm{CrO}}_4^{2-}$
B. ${\mathrm{SiCl}}_4$ and ${\mathrm{TiCl}}_4$
C. ${\mathrm{NH}}_3$ and ${\mathrm{NO}}_3$
D. ${\mathrm{BCl}}_3$ and ${\mathrm{BrCl}}_3$

231985 Which of the following is optically inactive?

1

2

3

4 None of these

231986 Which of the following are not enantiomer pair.

1

2

3

4

231988 Which one of the following compounds has asymmetric carbon in it ?

231983 Which of the following are structural pairs?
A. ${\mathrm{SO}}_4^{2-}$ and ${\mathrm{CrO}}_4^{2-}$
B. ${\mathrm{SiCl}}_4$ and ${\mathrm{TiCl}}_4$
C. ${\mathrm{NH}}_3$ and ${\mathrm{NO}}_3$
D. ${\mathrm{BCl}}_3$ and ${\mathrm{BrCl}}_3$

231985 Which of the following is optically inactive?

1

2

3

4 None of these

231986 Which of the following are not enantiomer pair.

1

2

3

4

231988 Which one of the following compounds has asymmetric carbon in it ?

231983 Which of the following are structural pairs?
A. ${\mathrm{SO}}_4^{2-}$ and ${\mathrm{CrO}}_4^{2-}$
B. ${\mathrm{SiCl}}_4$ and ${\mathrm{TiCl}}_4$
C. ${\mathrm{NH}}_3$ and ${\mathrm{NO}}_3$
D. ${\mathrm{BCl}}_3$ and ${\mathrm{BrCl}}_3$

231985 Which of the following is optically inactive?

1

2

3

4 None of these

231986 Which of the following are not enantiomer pair.

1

2

3

4

231988 Which one of the following compounds has asymmetric carbon in it ?