Question

$A{s_2}{S_3}$sol is:
A.Positive colloid
B.Negative colloid
C.Neutral colloid
D.None of the above

Answer 1

Colloids: In chemistry, a colloid is a stage isolated blend in which one substance of minutely scattered insoluble or solvent particles is suspended all through another substance. In some cases the scattered substance alone is known as the colloid.

Complete step by step answer:
Now we will discuss Arsenic, its atomic number ions and its property and will categorize it as one of colloids.
Arsenic: It is the element present in the periodic table represented by $As$ having atomic number 33. It is a metalloid and is usually found along with other metals and sulphur.
It is a poisonous element which when ingested lead to liver diseases, cancer and can even lead to death of the individual.
Now we will study about isoelectric point, to answer this question given above:
Isoelectric point: At a particular pH it is the point where the charge of a molecule or element is zero, it does not possess any charge. But below this point it has positive charge and above the isoelectric point the charge present is negative.
Now with this definition we will define positive, negative and neutral colloids.
Positive colloids: They are the colloids that have positive charge present on them.
Negative colloids: They are the colloids that have negative charge present on them.
Neutral colloids: They are the colloids that have no charge present on them.
$A{s_2}{S_3}$ has negative charge on its surface due to ${S^{2 - }}$ present in colloids.

So, the correct answer is Option B .

Note:
Arsenic fiddles with the mechanism of ATP pathway disturbing the cardiovascular and neurological systems of the body, and in extreme conditions it leads to the multi-organ failure at once causing death of the individual.