MCQ
Choose the correct answer from the options given below :
The drying agent used to dry HCl gas is : ________ .
The drying agent used to dry HCl gas is : ________ .
- ✓Conc. $H _2 SO _4$
- BZnO
- C$Al _2 O _3$
- DCaO
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| pH of ammonia at start | pH after excess sulphuric acid | |
| A | 11 | 7 |
| B | 7 | 13 |
| C | 11 | 2 |
| D | 3 | 8 |