In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the option corresponding to it. If the sentence is free from error, click the 'No Error' option. Each of you(P)/ were looking bored(Q)/ during the lecture(R)/ No error(S).?

Option 2 : Q

The error lies in part Q of the question. Therefore the correct answer is option 2.

The word 'each' is a distributive pronoun. Distributive pronouns are those pronouns which refer to persons or things one at a time i.e. separately and not collectively. With the distributive pronoun 'each', the singular form of the verb is used.
For example- 

Each of the students likes to play during recess time. (it means every single student likes to play)

Correct Sentence- Each of you was looking bored during the lecture.

Tip- It is important to note that a distributive pronoun (like each, either, neither) is always singular and therefore must be followed by a singular verb.