BUK Chemistry 2008/2009 Past Questions

Practice each question, then open it to see the full details.

Which of the following substance is used in anaesthetics?

A. CHI₃
B. CHCL₃
C. CHBr
D. C₂H₅OH

Bubbling of carbon(IV)oxide into calcium hydroxide solution results in the formation of

A. CaO
B. Ca (OH)₂
C. CaCo₃
D. Ca(HCO)₂

Catalytic hydrogenation of oil results in the production of

A. Margarine
B. Soaps
C. Detergents
D. Alkanes

How many unpaired electrons are there in an atom of an element with the following electronic configuration: 1S² 2S² 2P⁶

A. 0
B. 1
C. 2
D. 6

Compounds that have the same molecular formula but different structure are said to be

A. Allotropic
B. Polymorphic
C. Polymeric
D. Isometric

Which of the following indicate the correct increasing order of oxidizing power of halogens

A. F < Cl< Br < I
B. I < Br < Cl < F
C. I < Cl < Br < F
D. Cl < F < I < Br

What is the major product formed when C₂H₅OOH reacts with

A. C₂H₅COOCH₃
B. C₂H₅COCH₃
C. CH₃COOC₂H₅
D. C₃H₂COOH

What is the oxidation number of chromium in K₂CrO₄

A. +1
B. +2
C. +4
D. +6

What process is involved in the reaction represented by the following equations: AlCl_1(s) + 3H₂O_(l) ⟶ Al(OH)_3(l) + 3HCl_g

A. Dehydration
B. Hydrolysis
C. Double decomposition
D. Neutralization

Which of the following features of a human skeleton can be determined by carbon dating?

A. Height
B. Mass
C. Age
D. Race

Which of the following is an acid salt

A. NH₄Cl
B. MgSO₄H₂O
C. CH₃
D. NaHCO₃