Question

What is granulated zinc?

Answer 1

Zinc is a chemical element which has atomic number $30$ . It is denoted by the symbol “Zn”. It is the first element in the group $12\left( {II\,B} \right)$ of the periodic table. The term “granulated” means that in the form of grains or particles.

Complete answer:
As we already know that zinc is a transition metal element of atomic number $30$ . It is denoted by the symbol “Zn”. It is the first element in the group $12\left( {II\,B} \right)$ of the periodic table. In the question, it is asked about the granulated zinc. It is only the zinc metal which has high particle size or it is present in the form of granules.
In other words, we can say that the Zinc metal with high surface area and high particle size are called zinc granules. It is mostly preferred as it has a high surface area. The colour of the zinc granules appears as silver grey.
These zinc granules are used in laboratories for the preparation of hydrogen gas. Due to its high surface area, it facilitates the reaction in a better way. It can produce hydrogen gas rapidly when heated with acids, and hence the reaction can occur more rapidly.
The granulated zinc has copper as an impurity but it acts as a catalyst and catalyses the reaction rapidly. It also prevents the deposition of the gas on zinc. The zinc granules are formed by pouring molten zinc into water. An irregular shape of zinc is termed as zinc granules.

Note:
Always Remember zinc granules do not have different chemical formulas. It is just the zinc metal but it has irregular shape and nothing else. It is widely preferred because it has high surface area which catalyses the reaction rapidly.