Which of the following substances is highly useful for patients who have undergone surgery?

Assertion : Dope test is used to estimate the level of blood alcohol by analyzing the breath of persons drinking alcohol.
Reason : $A$ drunken person usually feels tense and less talkative.

Morphine is obtained from the

Which analgesic drug is obtained from opium?

Match the following plants/drugs with their correct descriptions:

$(a)$	Poppy plant	$(i)$	Cannabis
$(b)$	Cannabis plant	(ii)	Diacetyl morphine
$(c)$	Datura plant	(iii)	Hallucination

Which of the following plants is known for producing hallucinogenic effects?