Question

d. Circle the odd one out:
1. NaOH, HCI, HNO3, H2SO4
2. S, Cu, Al, Zn
3. Effervescence, Precipitate,
Colour change, Oxidation
4. N2, O2, Au, H2..
5. CO2, H2O, Na, HCI​

Answer 1

Answer:

1. NaOH

2. S

3. Oxidation

4. Au

5. Na

Answer 2

Answer:

Naoh

Al

colour change

Au

Na