Question No : 57
The modern system of symbols was evolved by
Question No : 58
The neutron was discovered by
Question No : 59
A mixture of ethyl alcohol and water can be separated by
Question No : 60
The Long Form of the Periodic Table is based on
Question No : 61
The term 'nucleons' apples to
Question No : 62
Isotopes differ in the number of
Question No : 63
Radium was isolated from
Wanna test your skill? Here are some exams we prepared for you. So if you need to test your skill just attempt any exam from bellow.
| Exam Name | No. Of Q | Link |
| Chemistry set 1 | 30 | Start |
| Chemistry set 2 | 30 | Start |
| Chemistry set 3 | 30 | Start |
| Chemistry set 4 | 30 | Start |
| Chemistry set 5 | 30 | Start |
| Chemistry set 6 | 30 | Start |
| Chemistry set 7 | 30 | Start |
| Chemistry set 8 | 30 | Start |
| Chemistry set 9 | 30 | Start |
| Chemistry set 10 | 30 | Start |
| Chemistry set 11 | 30 | Start |
| Chemistry set 12 | 30 | Start |