Which of the following does not determine the exchange

Select the correctly spelt word.

Diffident

Select the word which means the same as the group of words given.

One who plans the steps and moves in a dance

Select the most appropriate synonym of the given word.

CURSORY

Select the most appropriate synonym of the given word.

Munch

Given below are three sentences which use a common word highlighted. Find out the correct pair of the sentences that use the word correctly.

Select the option that can be used as a one-word substitute for the given group of words.

Having no boundaries or limits

Select the wrongly spelt word.