Two valence states of uranium one with a deficit of four electrons and the other one with a deficit ...........

General Knowledge (CLAT) Sentence Improvement

Direction: In each of the following sentences, some part of the sentence or the entire sentence is underlined. Beneath each sentence, you will find four ways of phrasing the underlined part. Choose the most appropriate option given in each of the sentences given below that is the best version than the underlined part of the sentence.

Two valence states of uranium, one with a deficit of four electrons and the other one with a deficit of six occurs in nature and contributes to the diversity of uranium’s behaviour.

The other one a deficit of six, occur in Nature and contribute

The other with a deficit of six, occurs in Nature and contributes

The other with a deficit of six, occur in Nature and contribute

One with six occurs in Nature and contributes

Explanation:

Two valence states of uranium, one with a deficit of four electrons and The other with a deficit of six, occurs in Nature and contributes to the diversity of uranium’s behaviour.
The answer is option 2 because when we use AND then we are talking of the other valence state of Uranium , which would be singular and the verb would have -s in the end i.e occurs and contributes.