Ionic and Covalent Bond Quiz

Ionic charge of specie having 50P+ and 46e-

• 2+

• 4+

• 4-

• 2-

Ionic bond is formed when

• Metal react with non metal

• Group 1A & 2A metals with nonmetals of group VIIA

• Both a & b

• None of these

Nature of covalent bond is polar in the following

• H2O

• H2

• Cl2

• Both b&c

Which of the following are the properties of covalent bond

• Show isomerism & rigid

• Non directional

• Low melting and boiling point

• Both a & b

Which of the following property is not associated with hard acids

• They are cations of smaller size

• They are cations of higher charges

• They are not easily polarizable

• These are molecules or ions with greater number of valance electrons

The correct order of acidic character of group VIIA is

• HI>HBr>HCL>HF

• HI>HBr> HF>HCL

• HF>HCL>HBr> HI

• HI>HF>HBr>HCl

According to Arrhenius concept a base must give

• OH-

• H+

• Lone pair

• CO3-2

Benzoic acid has Ka value?

• 6.6x10-3

• 6.8x10-3

• 8.6x10-3

• 8.8x10-3

Hydrochloric acid has Ka value?

• 10-3

• 10-8

• 10-7

• 10-5

Lemon has pH

• 3.2

• 2.3

• 3

• 1