CHM 3RD SS1

Propanoic acid is   _________

• Tribasic

• dibasic

• monobasic

• Unionisable

 A weak acid is one  

•  which can ionize completely in aqueous solution

• which has a low pH value

• which is not corrosive

• which can ionise partially in aqueous solutions.

The number of hydroxonium ions produce by one molecule of an acid in aqueous solution is termed as its    

•  acid strength

• pH

• acidity

• basicity

1) Neutralization is a reaction between OH  and    

• SO4  

• H30

• Cl

• NO3

 A student who accidentally poured concentrated (H2SO4) on his skin during a practical class is best treated by washing the skin with  

• more of the concentrated H2SO4

• Potassium hydroxide solution

• sodium trioxocarbonate (iv) solution followed by plenty of cold water

• iodine solution

The reaction between KOH solution and NO2 produces water and   

• KNO3

• HNO3

• KNO2

• KNO3  and  KNO2

An acid salt is     

• FeSO4.7H2O

• NaHSO4

• (NH4)2SO4

• CH3COONa

A normal salt is    

• (NH4)2SO4  

• NaHSO4

• Mg(OH)Cl

• Mg(HCO3)2

An aqueous solution of sodium hydroxide has a pH 12.0 . What is the hydroxide ion concentration of the solution?   

A physical property is  

• rusting

•  precipitation

•   neutralization

• melting point