Today we have learn how to H2S
How to Use:-
Fill the bottle with the water sample up to the marked line.
Close the bottle tightly.
Keep it undisturbed for 24 to 48 hours.
After that, observe the colour:
If the water turns black, it indicates that the water is contaminated.
If there is no colour change, the water is considered safe.
Materials Required for the Kit:-
Forceps
Petri plate
Filter paper
Beaker
Plastic bottle
Chemicals
Media:-
Preparation of media for 200 H₂S kit strips.
Note: Some handwritten words near the bottom are faint, so the last line about the media preparation is only partially visible.
and have planted drumsticks crops in 4×4 plot and have known (completing square method)
