Question

Common name of copper sulphate is?
A. Chalk
B. Quicklime
C. Nitre
D. Blue vitriol

Answer 1

Hint: It is a salt occurring naturally as large transparent, which appears as a white powder in its anhydrous state. It is used as a fungicide and insecticide. Now try to figure out the answer by yourself.

Complete step by step answer:
As we know Copper sulfate, also known as cupric sulfate, or copper sulphate, is the inorganic compound with the chemical formula ${ CuSO }_{ 4 }$.

Blue vitriol is the older name for this compound. Blue vitriol is a very effective product that is chemically known as copper sulfate pentahydrate. Its chemical formula, ${ CuSO }_{ 4 }.5{ H }_{ 2 }O$ .This chemical is called blue vitriol as it is prepared by oxidizing copper with hot concentrated sulfuric acid.
Let us understand how it acquired blue color.
Basically an insoluble metal oxide is reacted with an acid to form a soluble salt. Later on Copper oxide, a black solid, and colorless dilute sulfuric acid are added which then react to produce copper sulfate, giving a characteristic blue color to the solution.
Blue vitriol has many uses but the major uses of the chemical are; being a fungicide, the people generally use it for controlling molds and fungus from the places like lawns, gardens and some other wet areas where fungi grow.
Therefore, the common name for copper sulphate is blue vitriol. Hence, option D is the required answer.

Note: You should know that consumption of large amounts of copper sulphate can lead to nausea, vomiting and damage to body tissues, blood cells and kidneys. So be careful.