1.
The correct increasing ionic nature is :
2.
Which of the following pairs of ions are isoelectronic and isostructural ?
3.
In which of the following molecules are all the bonds not equal ?
4.
Which one of the following pairs is isostructural (i.e., having the same shape and hybridisation)?
5.
Which of the following is a polar molecule ?
6.
Which of the following is electron-deficient ?
7.
Which of the following is not a correct statement ?
8.
Which of the following is paramagnetic ?
9.
Four diatomic species are listed below in different sequence Which of these represents the correct order of their increasing bond order ?
10.
In which of the following bond angle is maximum ?
11.
The number of unpaired electrons in a paramagnetic diatom molecule of an element with atomic number 16 is :
12.
The correct order of increasing bond angles in the following species is :
13.
Which of the following species does not exist under normal conditions ?
14.
Among the following the pair in which the two species are not isostructural is
15.
Which of the following statements is not correct for sigma and pi-bonds formed between two carbon atoms?
16.
Which molecule has trigonal planar geometry ?
17.
Which one of the following molecules will form a linear polymeric structure due to H-bonding ?
18.
Which of the following has the minimum bond length ?
19.
The total number of π-bond electrons in the following structure is
21.
Read the question given below
22.
The correct order of C-O bond length among the following is
23.
Bond order of 1.5 is shown by :
24.
Which one of the following orders is not in accordance with the property stated against it?
25.
In the case of alkali metals, the covalent character decreases in the order :
26.
Which one of the following molecules contains no л-bond?
27.
Read the question given below
29.
The correct sequence of increasing covalent character is
30.
Read the question given below
31.
Which of the following molecules has the maximum dipole moment ?
32.
In X ------------ H ------------- Y, X and Y both are electronegative elements
33.
Read the question given below
34.
Which of the following is an electron deficient molecule ?
35.
In which of the following pπ-dπ bonding is observed ?
36.
Which of the following pairs of compounds is isoelectronic and isostructural ?
37.
According to MO theory, which of the following lists ranks the nitrogen species in terms of increasing bond order ?
39.
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them :
40.
In which of the following pairs, both the species are not isostructural ?
41.
Which of the following two are isostructural ?
42.
Read the question given below
43.
Maximum bond angle at nitrogen is present in which of the following?
44.
Read the question given below
45.
Read the question given below
47.
Read the question given below
48.
Which of the following species contains three bond pairs and one lone pair around the central atom?
49.
Which of the following pairs of species have the same bond order ?
52.
Read the question given below
53.
Which one of the following compounds shows the presence of intramolecular hydrogen bond ?
54.
Read the question given below
55.
The correct order in which the O -- O bond length increases in the following is
56.
Which of the following pairs of ions is isoelectronic and isostructural ?
58.
Read the question given below
59.
Which of the following compounds has the lowest melting point?
60.
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 ?
61.
Among the following which has the highest cation to anion size ratio ?
62.
Which of the following pairs is isostructural ?
63.
The correct order of increasing bond length of C - H,C -O,C - C and C =C is :
64.
The molecule having permanent dipole moment is :
65.
The pair of species with the same bond order is :
66.
The species, having bond angles of 120° is:
67.
The correct bond order in the following species is:
68.
Which is expected to show paramagnetism ?
69.
The correct order regarding the electronegativity of hybrid orbitals of carbon is :
70.
The correct order of increasing bond angles in the following triatomic species is :
71.
Read the question given below
72.
Read the question given below
73.
Read the question given below
74.
Which of the following species has a linear shape ?
75.
Which of the following option represents the correct bond order ?
76.
Read the question given below
77.
Read the question given below
78.
Which one of the following species has plane triangular shape ?
79.
Considering the state of hybridisation of carbon atoms, find out the molecule among the following which is linear.
80.
Which of the following species contains equal number of σ- and π bonds ?
