Lewis Bases

Q.

What are the limitations of Lewis theory?

Q. Is h2o lewis acid or base ?

Q.

The correct statements regarding the acids are
A) $N{H}_3$ can act as both bronsted base as well as Lewis base
B) Dry hydrogen chloride is not Arrhenius acid

C) According to Davy, acid must contain oxygen as necessary element

1. A and B

2. A and C

3. A, B and C

4. B and C

Q. In the reaction $I_2+I^{-}\to I_3^{-}$, the Lewis base is

1. $I_2$
2. $I^{-}$
3. $I_3^{-}$
4. None

Q. Which of the following species (molecule or ion) can behave both as a Lewis Base as well as a Bronsted base?

1. $B{F}_3$
2. $C{l}^{-}$
   
3. $CO$
   
4. None of the above

Q. Which of the following will qualify as Lewis base ?

1. $N{H}_3$
2. $P{H}_3$
3. Both A and B
4. $BC{l}_3$

Q. In the reaction $I_2+I^{-}\rightleftharpoons I_3^{-},$
Which of the following acts as a Lewis base is:

1. $I_2$
2. $I^{-}$
3. $I_3^{-}$
4. None of these

Q. In the reaction $I_2+I^{-}\to I_3^{-}$, the Lewis base is

1. $I_2$
2. $I^{-}$
3. $I_3^{-}$
4. None

Q. arrangeTHE FOLLOWING in order of basic character, NH^{2-}, OH^-, O^{2-}, S^{2-

Q.

Which of the following cannot act as Lewis base?

1. $C{H}_{3}N{H}_2$

2. $H_{2}O$

3. $B{F}_3$

4. $N{H}_3$