Chemical Bomding

Question 1

Strong bond are among A.Covalent B.Metallic C.Ionic D.Vanderwaal E.Hydrogen bonds

Answer 1

A,B,C with energy over 200KJ D has energy<8KJ and while E has from 8-42 KJ

Question 2

Electronegativity of central atom is

Answer 2

Generally low

Question 3

Condition for a compound to disobey Lewis dot structure

Answer 3

Hypovalent, Hypervalent, odd electron

Question 4

Steric number

Answer 4

Bp+lp

Question 5

More electronegative atom is generally

Answer 5

Away from nucleus

Question 6

Bent’s rule

Answer 6

Lone pair stays at higher bond angle position

Question 7

Structure of No2+, N2o, no2-, no3-

Answer 7

Web

Question 8

The position of sigma 2pz is after pi bonding x and y in compounds with electrons less than 14. Why

Answer 8

Because those molecules are small which increases their orbital interaction and potential energy (s-p mixing)

Question 9

Elements except N,F,O that have H bonding

Answer 9

Cl eg. chloral hydrate and o-chlorophenol