Galogenlar mavzusiga oid tajribalar

GRAMMAR EXERCISES

EXERCISE 1

Fill in the dots.

1. The word halogen means …………………………………………………..

2. When combined with fluorine ………………….. exhibits only -1 oxidation

3. Chlorine exhibits …………………………valence in compounds with metals

4. Chlorine exhibits ……………….. oxidation states in oxygenated compounds

5. The ………….compound of chlorine is called ………………….. in medicine

6. Bromine is in color ………………………………………

7. Iodine was discovered by …………………………………

8. Fluorine occurs in nature in the ……………………………………….. state

9. Salt Formula ……………………..

10. Silvinite formula ………………..