Vsepr Vbt

Which of the following is not a correct statement?

1.	The electron-deficient molecules can act as Lewis acids.
2.	The canonical structures have no real existence.
3.	Every AB5 molecule does in fact have a square pyramidal structure.
4.	Multiple bonds are always shorter than corresponding single bonds.

Which of the following is not isostructural with SiCl₄?

1. $SC{l}_4$

2. $S{O}_4^{2-}$

3. $P{O}_4^{3-}$

4. $N{H}_4^{+}$

The correct order of increasing bond angles in the following triatomic species is:

1. ${\mathrm{NO}}_2^{-}$ $<$ ${\mathrm{NO}}_2^{+}$ $<$ ${\mathrm{NO}}_2$

2. ${\mathrm{NO}}_2^{-}$ $<$ ${\mathrm{NO}}_2$ $<$ ${\mathrm{NO}}_2^{+}$

3. ${\mathrm{NO}}_2^{+}$ $<$ ${\mathrm{NO}}_2$ $<$ ${\mathrm{NO}}_2^{-}$

4. ${\mathrm{NO}}_2^{+}$ $<$ ${\mathrm{NO}}_2^{-}$ $<$ ${\mathrm{NO}}_2$

Which of the following is the incorrect statement?

1. PH₅ and BiCl₅ do not exist

2. p\pi - d\pi bonds are present in SO₂

3. SeF₄ and CH₄ have the same shape

4. $\mathrm{has}$ $\mathrm{bent}$ $\mathrm{geometry}$

Match the compounds of Xe in Column I with the molecular structure in Column II.

	Column-I		Column-II
(a)	XeF2	(i)	Square planar
(b)	XeF4	(ii)	Linear
(c)	XeO3	(iii)	Square pyramidal
(d)	XeOF4	(iv)	Pyramidal

	(a)	(b)	(c)	(d)
1.	(ii)	(i)	(iii)	(iv)
2.	(ii)	(iv)	(iii)	(i)
3.	(ii)	(iii)	(i)	(iv)
4.	(ii)	(i)	(iv)	(iii)

Amongst the following, which one will have maximum 'lone pair - lone pair' electron repulsions?

1.
2.
3.
4.

Match List-I with List-II.

	List-I (Compound)		List-II (Shape/geometry)
A.	NH3	I.	Trigonal Pyramidal
B.	BrF5	II.	Square planar
C.	XeF4	III.	Octahedral
D.	SF6	IV.	Square Pyramidal

Choose the correct answer from the option given below:

1.	A-II, B-IV, C-III, D-I	2.	A-III, B-IV, C-I, D-II
3.	A-II, B-III, C-IV, D-I	4.	A-I, B-IV, C-II, D-III