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OtisamLMS
Chemistry

Chemistry · Quick practice · answer shown after each question

Hydrocarbons: alkanes, alkenes and alkynes

Question 1 of 10

Question 1 of 10

The main reaction of alkanes with chlorine in sunlight is

Question 2 of 10

Question 2 of 10

Describe the laboratory preparation of ethyne and give two of its properties and two uses.

Question 3 of 10

Question 3 of 10

The complete combustion of methane produces

Question 4 of 10

Question 4 of 10

(a) What is cracking? (b) Write an equation for the cracking of decane, C₁₀H₂₂, to give octane and ethene. (c) State two reasons why cracking is important.

Question 5 of 10

Question 5 of 10

Alkanes are described as saturated because

Question 6 of 10

Question 6 of 10

Ethene reacts with steam (phosphoric acid catalyst) to form

Question 7 of 10

Question 7 of 10

Fractional distillation of crude oil separates it into fractions based on

Question 8 of 10

Question 8 of 10

Carbon monoxide is poisonous because it

Question 9 of 10

Question 9 of 10

Explain the fractional distillation of crude oil. Name four fractions and give one use of each.

Question 10 of 10

Question 10 of 10

Ethyne is prepared by adding water to calcium ___.

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.