Read the following statements and choose the set of correct statements :

(A) Chrome steel is used for cutting tools and crushing machines.

(B) The fine dust of aluminium is used in paints and lacquers.

(C) Copper is used for reduction of alcohol

(D) Zinc dust is used as a reducing agent in the manufacture of paints

(E) Iron is used for galvanising zinc

Choose the most appropriate answer from the options given below :

Question

Read the following statements and choose the set of correct statements :

(A) Chrome steel is used for cutting tools and crushing machines.

(B) The fine dust of aluminium is used in paints and lacquers.

(C) Copper is used for reduction of alcohol

(D) Zinc dust is used as a reducing agent in the manufacture of paints

(E) Iron is used for galvanising zinc

Choose the most appropriate answer from the options given below :

Accepted Answer

C. 1. To find the correct set, check each statement against known industrial and chemical facts about these metals and alloys.

2. **Statement (A):** Chrome steel is a hard, corrosion-resistant alloy, making it well suited for cutting tools and crushing machinery, so this statement is **correct**.

3. **Statement (B):** Fine aluminium powder is commonly added to paints and lacquers to give them a bright, metallic finish, so this statement is **correct**.

4. **Statement (C):** Copper is mainly valued for its excellent electrical conductivity and is used in wiring and plumbing, not for reducing alcohols in chemical reactions, so this statement is **incorrect**.

5. **Statement (D):** Zinc dust can act as a reducing agent in various industrial processes, including in paint manufacturing, so this statement is **correct**.

6. **Statement (E):** In reality, it is **zinc** that is used to coat and protect iron (a process called galvanising), not the other way around, so this statement is **incorrect**.

7. Since statements (A), (B), and (D) are correct while (C) and (E) are incorrect,

Hence, the answer is **C**.