Which of the following overlops is incorrect (assuming Z axis internuclear axis)?
(A) (B)
(C) (D)
(E) (F)
(a) A,B,C (b) C,F
(c) B,E (D) B,C,D
How many sigma bonds are in a molecule of diethyl ether,
1. 14
2. 12
3. 8
4. 16
Which of the following species has a zero dipole moment?
(ii) (iii) (iv)
1. | (i) and (iv) | 2. | (ii) and (iv) |
3. | (iii) and (iv) | 4. | (i), (iii) and (iv) |
The correct statement about carbene is:
(1) In singlet carbene, carbon is -hybridized whereas in triplet carbene, carbon is sp-hybridized
(2) Triplet carbene is less stable than singlet carbene
(3) Stability of halocarbenes is: CHF>CHCL>CHBr
(4) None of the above
Which of the following is a pair of polar molecules:
1.
2.
3.
4.
In which molecule does the chlorine atom has positive partial charge?
(1) HCl
(2) BrCl
(3)
(4)
The incorrect order of lattice energy among the following set is:
1.
2.
3.
4.
Which of the following set of species have planar structures?
(a)
(b)
(c)
(d)
Both and compounds have trigonal planer skeleton. Incorrect statement about both compound is :
(1) SiNSi bond angle in SiNSi bond angle in
(2) bond length in bond length in
(3) bond length in bond length in
(4) Back bonding strength in Back bonding strength in
Which ionic compound has the largest amount of lattice energy?