Acids, bases and salts - Jamb Chemistry Past Questions and Answers

Question 96:

• JAMB 1999

Chlorine, bromine and iodine resemble one another in that they

A. Dissolve in alkalis
B. React violently with hydorgen without heating
C. Are liquids
D. Displace one another from solutiions of their salts

Question 97:

• JAMB 1999

The salt that reacts with dilute hydrochloric acid to produce a pungent smelling gas which decolourizes acidified purple potassium tetraoxomanganate (VII) solution is

A. Na₂SO₄
B. Na₂SO₃
C. Na₂S
D. Na₂CO₃

Question 98:

• JAMB 1999

Which of the following metals is passive to concentrated trioxonitrate (V) acid?

A. Iron
B. Tin
C. Copper
D. Zinc

Question 99:

• JAMB 2000

Which of the following compounds is composed of Al, Si, O and H?

A. Epsom salt
B. Limestone
C. Clay
D. Urea

Question 100:

• JAMB 2000

HCL_(aq) + H₂O_(l) H₃O⁺_(aq) + Cl^-_(aq)
In the reaction above, Cl^-_(aq) is the

A. Conjugate acid
B. Acid
C. Conjugate base
D. Base