EASY
Earn 100

What is the nature of the bond between B and O in C2H52OBH3?

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Important Questions on Chemical Bonding and Molecular Structure

MEDIUM
Among the following molecules, the one with the largest bond angle at the central atom is
MEDIUM
The compound(s) with two lone pairs of electrons on the central atom is (are)
EASY
The numbers of lone pair and bond pairs in hydrazine are, respectively:
EASY
Total number of lone pair of electrons in I3- ion is:
MEDIUM
The number of co-ordination bonded water molecules associated with CuSO4.5H2O is _______
MEDIUM
Which of the following compounds contain(s) no covalent bond(s)?

KCl, PH3, O2, B2H6, H2SO4
MEDIUM
Maximum bond angle at nitrogen is present in which of the following?
EASY
Arrange the following compounds in increasing order of C-OH bond length: methanol, phenol, p -ethoxyphenol
MEDIUM
The total number of dative bonds present in all the following CO, NH4Cl, Al2Cl6, AlH2O6, HNO3 and CO2 is
EASY
The sum of the number of dative bonds present in all the given species are; Al2Cl6, AlH2O6, CO, NH4+
EASY
What do you understand by a lone pair of electrons?
EASY
What is the nature of the bond between B and O in C2H52OBH3 ?
MEDIUM

Give a reason for the following:

Ionic compounds have a high melting point.

HARD
The lattice energies of NaCl, NaF, KCl and RbCl follow the order
MEDIUM
In ozone molecule, the formal charge on the central oxygen atom is
EASY
The number of π -bonds and σ -bonds present in naphthalene are respectively
EASY
Draw the electron dot structure of Ammonium ion. [N=7, H=1]
EASY
Nitrogen shows maximum covalency of 4 where as other heavier elements of the group show higher covalency because.
EASY
Which compound has both covalent as well as co-ordinate bonds?