1.
Which of the following is a polar molecule ?
3.
Which one of the following orders is not in accordance with the property stated against it?
4.
Which of the following statements is not correct for sigma and pi-bonds formed between two carbon atoms?
5.
Which one of the following molecules contains no л-bond?
7.
Bond order of 1.5 is shown by :
8.
Which molecule has trigonal planar geometry ?
9.
Which of the following pairs of species have the same bond order ?
10.
In which of the following bond angle is maximum ?
11.
The correct order in which the O -- O bond length increases in the following is
12.
Which of the following pairs of ions is isoelectronic and isostructural ?
13.
Read the question given below
14.
Which of the following molecules has the maximum dipole moment ?
15.
Read the question given below
17.
The correct order regarding the electronegativity of hybrid orbitals of carbon is :
18.
Which one of the following species has plane triangular shape ?
19.
Which one of the following compounds shows the presence of intramolecular hydrogen bond ?
20.
In X ------------ H ------------- Y, X and Y both are electronegative elements
21.
Read the question given below
22.
The correct order of C-O bond length among the following is
23.
Four diatomic species are listed below in different sequence Which of these represents the correct order of their increasing bond order ?
24.
Which of the following species contains equal number of σ- and π bonds ?
25.
The total number of π-bond electrons in the following structure is
26.
Read the question given below
27.
According to MO theory, which of the following lists ranks the nitrogen species in terms of increasing bond order ?
28.
Read the question given below
30.
Which of the following is not a correct statement ?
31.
Which of the following is an electron deficient molecule ?
32.
Read the question given below
33.
In which of the following pπ-dπ bonding is observed ?
34.
Read the question given below
35.
Which of the following pairs of ions are isoelectronic and isostructural ?
36.
Which of the following is paramagnetic ?
38.
Read the question given below
39.
Which of the following pairs is isostructural ?
40.
Among the following which has the highest cation to anion size ratio ?
41.
Which is expected to show paramagnetism ?
42.
Which of the following has the minimum bond length ?
43.
Read the question given below
44.
The molecule having permanent dipole moment is :
45.
Which of the following option represents the correct bond order ?
46.
In which one of the following species, the central atom has the type of hybridisation which is not the same as that present in other three ?
47.
Which of the following species does not exist under normal conditions ?
48.
Maximum bond angle at nitrogen is present in which of the following?
49.
Which of the following is electron-deficient ?
50.
Read the question given below
51.
The correct order of increasing bond length of C - H,C -O,C - C and C =C is :
52.
Read the question given below
53.
The correct sequence of increasing covalent character is
54.
The correct order of increasing bond angles in the following triatomic species is :
55.
Which one of the following molecules will form a linear polymeric structure due to H-bonding ?
56.
The correct order of increasing bond angles in the following species is :
57.
The pair of species with the same bond order is :
58.
Which of the following compounds has the lowest melting point?
59.
In the case of alkali metals, the covalent character decreases in the order :
60.
Read the question given below
62.
Which one of the following pairs is isostructural (i.e., having the same shape and hybridisation)?
63.
The number of unpaired electrons in a paramagnetic diatom molecule of an element with atomic number 16 is :
65.
Which of the following pairs of compounds is isoelectronic and isostructural ?
66.
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them :
67.
Read the question given below
68.
Among the following the pair in which the two species are not isostructural is
69.
In which of the following molecules are all the bonds not equal ?
70.
In which of the following pairs, both the species are not isostructural ?
71.
Which of the following two are isostructural ?
72.
Read the question given below
73.
Which of the following species contains three bond pairs and one lone pair around the central atom?
74.
Read the question given below
75.
Read the question given below
76.
Which of the following species has a linear shape ?
77.
The species, having bond angles of 120° is:
78.
The correct increasing ionic nature is :
79.
The correct bond order in the following species is:
80.
Considering the state of hybridisation of carbon atoms, find out the molecule among the following which is linear.
