Basically, both amine groups will be pronated while the carboxylic acid will be depronated due to their pkas.
Your answer is B(I'm not very much sure about this one), C, and D.
I hope very much that I am correct, hope this helps you.
~Onyx~
Answer:
Upward delivery or downward displacement of air
Explanation:
The method of collection of a gas is dependent on it's density.
Gases that are less dense than air are collected by upward delivery or downward displacement of air while gases that are denser than air are collected by downward delivery or upward displacement of air.
Hydrogen is less dense than air hence it is collected by upward delivery or downward displacement of air.
a leguminous plant, Phaseolus aureus, whose seeds are used as food in India.
