Question

1. __________ Steel is not used for food containers.

Galvanized

Enamelled

Electroplated

2. Which non-metal’s powder is used for making skin care soaps and ointments?

Sulphur

Hydrogen

Iodine

3. Which pair of metals has the highest and the lowest melting point respectively?

Aluminium, Gold

Mercury, platinum

Tungsten, mercury

4. ________ is used in shielding of X-ray.

Boron

Tungsten

Lead

5. A non-metal X exists in two different forms Y and Z. Y is the hardest natural substance, whereas Z is good conductor of electricity. Identify X, Y and Z.

Carbon, Graphite, Diamond

Diamond, Graphite, Carbon

Carbon, Diamond, Graphite

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Answer 1

Answer:

answer of no 1 is galvanised.

Explanation:

Because galvanizing process created a coating to metal that prohibits rust.