Leaving Cert Chemistry Fuels & Thermochemistry: The following words are omitted

Question

The following words are omitted from the passage below:
residue smaller hydrocarbon top
Write in your answer book the omitted word(s) corresponding to each of the numbers (1 to 7).

In oil refining, 1_ is pre-heated in a furnace before being pumped into a fractionating column, like that shown in the diagram, where it separates into different useful 2_ fractions.
The temperature at the 3_ of the column is higher than it is at the 4_. Near the top of the column the 5_ molecules with lower boiling points separate. Farther down the column the 6_ molecules with higher boiling points separate. The 7_ that collects at the base of the column can be used for tarring roads.

The following words are omitted from the passage below: residue smaller hydrocarbon top Write in your answer book the omitted word(s) corresponding to each of the numbers (1 to 7) - Leaving Cert Chemistry - Question 1(a) - 2019

Worked Solution & Example Answer:The following words are omitted from the passage below: residue smaller hydrocarbon top Write in your answer book the omitted word(s) corresponding to each of the numbers (1 to 7) - Leaving Cert Chemistry - Question 1(a) - 2019

1: 1_

2: 2_

3: 3_

4: 4_

5: 5_

6: 6_

7: 7_

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