Question
Give one example each of a salt which gives an aqueous solution having:
- $pH$ less than $7$
- $pH$ equal to $7$
- $pH$ more than $7$
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| Substance obtained by microbial processing | Roles | |
| (i) | Citric acid | _________________ |
| (ii) | Ascorbic acid | _________________ |
| (iii) | Beta carotene | _________________ |
| (iv) | Glycolipids | _________________ |
| (v) | Vanillin | _________________ |
| (vi) | Xylitol | _________________ |
