Chemistry 2009 Waec Past Questions and Answers

Question 26 :

• WAEC 2009

Salts that contain water of crystallization are said to be

A. Anhydrous
B. Deliquescent
C. Efflorescent
D. Hydrated

Question 27 :

• WAEC 2009

Which of the following dilute acids does not react with metals to liberate hydrogen?

A. CH₃COOH_(aq)
B. HCI_(aq)
C. H₂SO_4(aq)
D. HNO_3(aq)

Question 28 :

• WAEC 2009

Which of the following compounds is not a double salt?

A. Zn(OH)NO₃
B. KAI(SO₄)₂
C. KCr(SO₄)₂
D. (NH₄)₂Fe(SO₄)₂

Question 29 :

• WAEC 2009

Which of the following hydroxides will readily dissolved in water?

A. Cu(OH)₂
B. NaOH
C. Pb(OH)₂
D. Zn(OH)₂

Question 30 :

• WAEC 2009

Which of the following acids from normal salt only?

A. Tetraoxosulphate (IV) acid
B. Tetraoxophosphate (V) acid
C. Trioxonitrate (V) acid
D. Trioxosulphate (IV) acid