हिंदी

______ is used for hardening steel.

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प्रश्न

______ is used for hardening steel.

विकल्प

  • Manganese

  • Copper

  • Zinc

  • Nickel

MCQ
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उत्तर

Manganese is used for hardening steel.

Explanation:

Manganese is critical for steel hardening, as it increases tensile strength, toughness, and wear resistance. It also serves as an effective oxidizer in a manufacturing process, eliminating contaminants such as oxygen and sulfur.

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अध्याय 14: Industries in India Part II - Mineral-Based Industries - Exercises [पृष्ठ २७७]

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ऑस्टिन वास, हेमंत एम. पेडनेकर, विद्या मलार Geography Our Earth [English] Class 10 ICSE
अध्याय 14 Industries in India Part II - Mineral-Based Industries
Exercises | Q I. 10. | पृष्ठ २७७
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