Editing Exercise For Class 10 CBSE

The following passage has not been edited. There is an error in each line. Identify the error and correct it. The first one has been done for you.

Editing exercise for class 10 CBSE

All atom can be split into protons, neutrons and electrons. (a)AllEvery
The smallest atom is that of hydrogen who has only one (b)
electron and one proton. Needlessly to say hydrogen is difficult (c)
to split. Uranium, that has 92 protons, 92 electrons and (d)
146 neutrons, is fairly large. The size making it easier to split. (e)
And when split, it let out huge amounts of energy. A unit of (f)
uranium can provide a million times much energy than (g)
the same volume of petrol.


a) Error – all / correction – every (Use all with plural nouns and every with singular nouns.)

b) Error – who / correction – which (Use who to refer to people; use which to refer to non-living things)

c) Error – needlessly / correction – needless

d) Error – that / correction – which (The relative pronoun that cannot be used to refer to a proper noun.)

e) Error – making / correction – makes (Here the subject is the singular noun size.)

f) Error – let / correction – lets (Here the subject is the singular pronoun it.)

g) Error – much / correction – more

Manjusha Nambiar

Hi, I am Manjusha. This is my blog where I give English grammar lessons and worksheets.

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