This titration involved adding measured amounts of an acid (HCl) to a base, and recording quantitative measurements of the resulting pH. The necessary equipment includes ...
an acid (specifically, HCl)
a base
a pH meter for quantitative measurements of pH
a device for precisely measuring the acid (a burette works for this)
We believe these requirements are consistent with choices A, B, D, E from the list given.
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An "indicator" will typically change some obvious property (often, color) at a specific value of pH. It generally is not quantitative enough for the purpose of drawing the supplied graph. A pH meter is a better choice.
<u>Stimulants </u> often cause overactive eye movement
Ans (A)
Stimulants are a class of psychoactive drugs that increase the brain activity. They work by acting on the central nervous system and increase the level of mental alertness and impart heightened cognitive functions. Stimulants like nicotine and cocaine cause overactive eye movement.
