EASY
Earn 100

Define expanded octet.

Important Questions on Chemical Bonding

MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Maximum bond angle at nitrogen is present in which of the following?
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
The set of molecules in which the central atom is not obeying the octet rule is
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
The compound(s) with two lone pairs of electrons on the central atom is (are)
HARD
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
The lattice energies of NaCl, NaF, KCl and RbCl follow the order
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
The oxide which contains an odd electron at the nitrogen atom is
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Among the following molecules, the one with the largest bond angle at the central atom is
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
The number of molecules or ions from the following, which do not have odd number of electrons are _____ .
(A) NO2
(B) ICl4-
(C) BrF3
(D) ClO2
(E) NO2+
(F) NO
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures

Give a reason for the following:

Ionic compounds have a high melting point.

MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Number of electron deficient molecules among the following PH3,B2H6,CCl4,NH3,LiH and BCl3 is
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule?
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Which of the following compounds contain(s) no covalent bond(s)?

KCl, PH3, O2, B2H6, H2SO4
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Which of the following molecule does not obey octet rule?
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Total number of lone pair of electrons in I3- ion is:
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
The numbers of lone pair and bond pairs in hydrazine are, respectively:
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
What do you understand by a lone pair of electrons?
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Arrange the following compounds in increasing order of C-OH bond length: methanol, phenol, p -ethoxyphenol
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
In ozone molecule, the formal charge on the central oxygen atom is
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Which one of the following molecules contains an incomplete octet of the central atom?
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
PCl5 is well known but NCl5 is not.Because,
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding>Lewis Structures
Which among the following is an electron deficient compound ?