The correct matching of List I with List II is as follows:

I. Morley-Minto Reforms - (C) Communal Electorates

The Morley-Minto Reforms, also known as the Indian Councils Act of 1909, introduced separate electorates for Muslims in India, granting them reserved seats in the legislative councils.

II. Simon Commission - (A) Country-wide agitation

The Simon Commission, appointed in 1927, was a British commission sent to India to evaluate the working of the constitutional reforms. It faced widespread opposition and led to country-wide agitation demanding Indian representation in the commission.

III. The Chauri-Chaura incident - (B) Communal outbreaks

The Chauri-Chaura incident in 1922 was a violent incident during the Non-Cooperation Movement led by Mahatma Gandhi. It resulted in communal outbreaks and violence, leading Gandhi to call off the movement.

IV. The Dandi March - (E) Illegal manufacture of salt

The Dandi March, also known as the Salt March, was a significant civil disobedience movement led by Mahatma Gandhi in 1930. It involved the illegal manufacture of salt as a symbolic act of defiance against British salt taxes.

Therefore, the correct answer is: I-C, II-A, III-B, IV-E.