Question

The substance that will be flattened on beating with a hammer is

• A. Crystal of iodine
• B. Lump of sulphur
• C. Piece of coal
• D. Zinc granule

Answer 1

The correct option is D

Zinc granule

Explanation of the correct answer:

The correct answer is option D:

1. With the use of a hammer, metals can be pounded into thin sheets (or flattened).
2. When pounded, non-metals shatter into tiny fragments. As a result, hammering zinc granules will cause them to become flat.
3. Because the d- orbital in the metal zinc is entirely occupied, it is soft and when it is struck, the electrons go to open areas.
4. Granules of zinc are the metal's solid crystals.
5. In contrast to zinc powder, zinc granules have larger particle sizes.
6. Granulated zinc is utilised in the process of producing hydrogen gas because of its enormous surface area.

Explanation of the incorrect answers:

Option A:

1. Iodine is a very, very soft material that, with with the slightest bit of pressure, will crumble into powder.

Option B:

1. Many substances, like coal and sulphur, have an extremely soft look. When tapped with a hammer, they crumble into an extremely fine, thin powdered pile.

Option C:

1. Non-metal coal is a kind of carbon. It will shatter into fragments if hit with a hammer.