05 May O Level | IP Chemistry Tuition
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37 A compound known in industry as ‘MTBE’ is used as an additive in ‘lead-free’ petrol. The structural formula of MTBE is shown.
Which compound is an isomer of MTBE?
38 A student investigated the reaction of different vegetable oils with hydrogen. 100 cm3 of hydrogen was passed through 1 g samples of vegetable oils containing a suitable catalyst. The volume of hydrogen remaining after each reaction was recorded.
|vegetable oil||volume of hydrogen
Which vegetable oils are unsaturated?
A P only B Q and R only
C Q, R and S only D S only
39 The diagram shows the structure of the compound 1,3-butadiene.
How many molecules of hydrogen are needed to saturate one molecule of 1,3-butadiene?
A 1 B 2
C 3 D 4
40 Methane is the first member of the alkane series of hydrocarbons. The second member is ethane which
1 has the formula C2H4.
2 has a higher boiling point than that of methane.
3 has the same empirical formula as methane.
4 has chemical properties very similar to those of methane.
Which statements are correct?
A 1, 2 and 3 B 1 and 4
C 2 and 4 D 3 only
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