?
Match the following.
Match the following.
| List-I | List-II |
| a. Coal Wilhelm Scheele | 1. Father of nanotechnology |
| b. Richard Feynman | 2. Isolation of malic acid from apples |
| c. Food Chemistry | 3. Scientific approach to food |
| d. J. G. Wallerius | 4. Single grain experiment |
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