Subject :Chemistry Class : Class 8
In this section, each question has two matching lists. Choices for the correct combination of elements from List-I and List-II are given as options A, B, C
and D out of which one is correct.
Code :
----P---- Q---- R---- S
A 4---- 3---- 1---- 2
B 3---- 2---- 4---- 1
C 4---- 2---- 3---- 1
D 4---- 1---- 2---- 3
how is petroleum formed by the polymerisation of ethene