What type of chemical is obtained from the flowering branch of the plant shown below?

From which part of the plant $Erythroxylum$ $coca$ is cocaine obtained?

Chronic use of alcohol and drugs causes:

Which of the following is a synthetic tranquilizer drug?

Nayan's friend is consuming drugs. What should Nayan do?
$(i)$ Discuss with the friend's parents. $(ii)$ Bring the matter to the attention of the friend's teacher. $(iii)$ Advise him to stay away from alcohol and drugs. $(iv)$ Try to understand why he is consuming drugs and show empathy. $(v)$ Inform him about the physical harm caused by addiction. $(vi)$ Provide proper guidance and help him stay away from addiction.

From which of the given plants is the drug whose skeletal structure is given below extracted?