Question

The attractive force which holds the atoms together is called chemical bond.Covalent bond is formed by equal sharing of

electrons.Coordinate bond is formed by unequal sharing of electrons.Ionic bond is formed by transfer of electrons from

one atom to another. Octet rule, although very useful but it is not universally applicable.According to valence bond

theory,covalent bond is formed by overlapping of the half filled atomic orbital resulting in lowering of energy and more

stability. Bond order is the number of bond of between atoms in a molecule. Higher the bond order, more will be

stability and bond dissociation enthalpy but smaller bond length.Polarity covalent bond depends upon difference in

electronegativity.Covalent character of bond depends upon polarizing power,smaller cation and bigger anions have

higher polarizing power.VSEPR theory helps to predict shapes of molecules,

Q25.Answer the following questions:

i)Write the electron dot structure of N2O.

ii)what are ions present in CsI3?

iii)On the basis of VSEPR theory find the shape of ClF3.

Q26.Find the bond order of CN-,CN+,NO. Which has the highest bond order?​

Answer 1

Answer:

covalent bond

ionic bond

chemical bond

chemical compound