Four pairs of words are given. In three pairs the words are related in the same way. Choose the pair in which the words are related differently.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Kerosene : Shoe polish
In three pairs the first word is a form of the element carbon and the second word is a thing made with it.
Option (1) Diamond : Glass cutter — diamond is the hardest form of carbon, so it is used in glass cutters.
Option (2) Graphite : Pencil lead — graphite is a soft form of carbon, used as pencil “lead”.
Option (3) Lampblack : Automobile tyre — lampblack is a fine black powder of carbon (soot), mixed into rubber for tyres.
Option (4) Kerosene : Shoe polish — kerosene is a liquid fuel, a mixture of compounds of carbon and hydrogen, not a form of carbon.
Only in Kerosene : Shoe polish is the first word not a form of carbon, so it is the odd pair.