When a gas is cooled down it turns into a liquid from a process called condensation.
- (a)When a gas is
- (b)cooled down it turns into a liquid
- (c)from a process called condensation.
- (d)No Error
Correct — C, 'from a process called condensation.' The gas changes into a liquid by means of a process, so the correct preposition is 'through' or 'by', giving 'through a process called condensation'. The preposition 'from' wrongly signals origin or source here, making segment (c) the error.
- (a)When a gas is — Error-free — a correctly formed opening clause introducing the condition.
- (b)cooled down it turns into a liquid — Error-free — 'turns into a liquid' uses the right verb and preposition for a change of state.
- (d)No Error — There is an error — the preposition 'from' should be 'through' or 'by' — so 'No Error' is not the answer.
This is an error-spotting item on preposition use — a change of state happens 'through' or 'by' a process, not 'from' a process, which would wrongly indicate source or origin.
No directly related past PYQ was found.
- practice — not a real PYQ
Spot the error: (a) Water is purified / (b) from a method / (c) called distillation. / (d) No error
- (a)Water is purified
- (b)from a method
- (c)called distillation.
- (d)No error
Answer(b) from a method — it should be 'by a method' or 'through a method', which shows means, not source.
- practice — not a real PYQ
Choose the correct preposition: The metal was shaped ___ a moulding process.
- (a)from
- (b)through
- (c)of
- (d)at
Answer(b) through — a process is the means by which the action is done, so 'through' (or 'by') fits.