MCQ
Coke is used in the manufacture of ______.
- ✓Steel
- BSodium
- CMercury
- DPottassium
✓
Answer
Correct option: A.
Steel
Coke is a pure form or allotrope of carbon. It is used in the manufacture of steel, as a fuel and as a reducing agent in extraction of various metals. Steel is an alloy of carbon and iron. Presence of carbon in the steel makes it harder and more durable than pure iron.a
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$ii. .........$ is the number and variety of plants, animals and other organisms that exist.
$iii.$ Species that no longer exist anywhere on the Earth are called $.........$ species
$iv.$ Cutting down forest and using the land for other purpose is known as $.........$