Que1) Which of the following constituent used in road surfacing?
(i) Paraffin wax
(ii) Bitumen
(iii) Coal tar
(iv) Both (ii) and (iii)
Que2) Which of the following is a constituent of petroleum?
(i) Kerosene
(ii) Coke
(iii) Both (i) and (ii)
(iv) None of the above
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