Cornelius Van Niel Experiment

Q. Which among the following is used by purple and green sulphur bacteria during photosynthesis?

1. ${\text{H}}_2\text{S}$
2. $\text{HCl}$
3. $\text{HF}$
4. $\text{HBr}$

Q. Which among the following is used by purple and green sulphur bacteria during photosynthesis?

1. ${\text{H}}_2\text{S}$
2. $\text{HCl}$
3. $\text{HF}$
4. $\text{HBr}$

Q. Which of the following organism(s) does not release oxygen as its byproduct during photosynthesis?

1. Cyanobacteria
2. Purple & green sulphur bacteria
3. (a) and (b)
4. None of the above