Match the column I & II using the code given below the column.
Column I |
Column II |
A. Colloidal graphite |
1. Bredig's arc method |
B. Colloidal gold |
2. Ultrasonic dispersion |
C. Colloidal AgCl |
3. Mechanical dispersion |
D. Colloidal mercury |
Peptisation |
|
A |
B |
C |
D |
(a) |
1 |
2 |
3 |
4 |
(b) |
4 |
3 |
2 |
1 |
(c) |
2 |
4 |
1 |
3 |
(d) |
3 |
1 |
4 |
2 |