O Level | IP Chemistry Tuition – Are you able to answer this Secondary Chemistry Tuition Question?

05 May O Level | IP Chemistry Tuition – Are you able to answer this Secondary Chemistry Tuition Question?

37        A compound known in industry as ‘MTBE’ is used as an additive in ‘lead-free’ petrol. The structural formula of MTBE is shown.

chemistry_tuition_q

Which compound is an isomer of MTBE?

4

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
remaining/cm3
P
Q
R
S
100
87
63
0

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.

5

 

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

 

Miracle Learning Centre (O Level Chemistry Tuition/ IP Chemistry Tuition)

Did you answer the Secondary Chemistry Tuition Question correctly?

 

37.C

38.C

39.B

40.C

 

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