which of the term of the AP 7-4I, 6-2I,5-0I, 4+2I (1) IS PURELY REAL AND (2) IMAGINERY

7-4i, 6-2i, 5-0i, 4+2i

So the term which has 0i will be purely real
So 5-0i is real
And the other terms are imaginary
So 7-4i, 6-2i and 4+2i are imaginary