C major diatonic chords

Question 1

1st

Answer 1

I (C Major): C-E-G

Question 2

2nd

Answer 2

ii (D minor): D-F-A

Question 3

3rd

Answer 3

iii (E minor): E-G-B

Question 4

4th

Answer 4

IV (F Major): F-A-C

Question 5

5th

Answer 5

V (G Major): G-B-D

Question 6

6th

Answer 6

vi (A minor): A-C-E

Question 7

7th

Answer 7

vii° (B diminished): B-D-F