Subject :NSO Class : Class 8
Read the given paragraph carefully and fill in the
blanks by choosing the appropriate option.
(i) is a thick dark, strong smelling liquid found
deep in the earth. Unrefined (i) is called (ii) and
(iii) gets collected over (i) inside the earth. During
fractional distillation of (i), the fraction with (iv)
boiling point condenses in the uppermost region and
uncondensed (v) comes out of the fractionating
tower.
| (i) | (ii) | (iii) | (iv) | (v) | |
| A | Petrol | Petroleum | Methane gas | Highest | Natural gas |
| B | Kerosene | Petrol | Hydrogen gas | Lowest | Methane gas |
| C | Petroleum | Crude oil | Natural gas | Lowest | Petroleum gas |
| D | Petrol | Petroleum | Hydrogen gas | Highest | Natural gas |
the answer is c