CBSE
Multiple Choice QuestionsWhat type of hybridisation takes place in the N atom of NH3 ?
sp2
sp3
dsp2
sp
The bond order of O2+ is the same as in :
N2+
CN-
CO
NO+
What is the nature of the bond between B and O in (C2H5)2OBH3 ?
Covalent
Co - ordinate covalent
Ionic bond
Banana shaped bond
In diborane, the two H - B - H angles are nearly
60°, 120°
95°, 120°
95°, 150°
120°, 180°
Which of the following does not have a lone pair on the central atom ?
NH3
PH3
BF3
PCl3
Among the following molecules
(i) eO3 (ii) eOF4 (iii) eF6
those having same number of lone pairs on Xe are
(i) and (ii) only
(i) and (iii) only
(ii) and (iii) only
(i), (ii) and (iii)
Assertion : Potassium ferrocyanide is diamagnetic whereas potassium ferricyanide is paramagnetic.
Reason : Crystal field splitting in ferrocyanide ion is greater than that of ferricyanide ion.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion : SeCl4 does not have a tetrahedral structure.
Reason : Se in SeCl4 has two lone pairs.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
The diamagnetic species is
[Ni(CN)4]2-
[NiCl4]2-
[CoCl4]2-
[CoF6]2-
Assertion : Molecular nitrogen is less reactive than molecular oxygen.
Reason : The bond length of N2 is shorter than that of oxygen.
If both assertion and reason are true and reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true, but reason is false.
Both assertion and reason are false statements.
