CBSE
Multiple Choice QuestionsDuring the change of O2 to O2- ion, the electron adds on which one of the following orbitals?
π* orbital
π orbital
σ* orbital
σ* orbital
Magnetic moment 2.83 BM is given by which of the following ions?
(At. no.: Ti =22; Cr=24; Mn=25; Ni=28)
Ti3+
Ni2+
Cr3+
Cr3+
Which of the two ions from the list given below have the geometry that is explained by the same hybridization of orbitals
Which of the following organic compounds has same hybridization as its combustion product -(CO)2?
Ethane
Ethyne
Ethene
Ethene
The Correct order of increasing bond length of C - H, C-O, C - C and C = C is
C - C < C=C < C - O < C - H
C - O < C - H < C - C < C = C
C - H < C - O < C - C < C= C
C - H < C = C < C - O < C - C
Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?
[BCl3 and BrCl3]
[NH3 and NO3-]
[NF3 and BF3]
[NF3 and BF3]
The pair of species with t he same bond order is
O22-, B2
O2+, NO+
NO, CO
NO, CO
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.
NO< O2-<C22- < He2+
O2- <NO< C22- < He2+
C22- < He2+ <O2- <NO
C22- < He2+ <O2- <NO
Bond order of 1.5 is shown by
O2+
O2-
O22-
O22-
Which of the following species contains three bond pairs and one lone pair around the central atoms?
H2O
BF3
NH2-
NH2-
