Question

precautions for hydrilla experiment

Answer 1

Twigs should be placed such that their cut ends facing upwards in the stem of the inverted funnel. Fresh hudrilla should be there.
its stem should be cut obliquely

Answer 2

Answer:

Fresh Hydrilla should be used for experiment.

Remove the test tube from the beaker in a slow and gentle manner.

Prevent the escape of gas bubbles while removing the test tube from the funnel.

Avoid unnecessary shaking of the apparatus while removing the test tube.

Be careful and do not tilt the test tube as it will result in the escape of gas bubbles and you will have to perform the whole experiment once again.