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Chapter 15 of 20
Revision Notes

Metallurgy

Maharashtra Board · Class 10 · Science

Quick revision notes for Metallurgy — Maharashtra Board Class 10 Science. Key concepts, formulas, and definitions for last-minute revision.

45 questions25 flashcards5 concepts

Key Topics to Revise

1

Physical Properties of Metals and Nonmetals

  • Metals exist mainly in solid state (exceptions: mercury and gallium are liquid at room temperature)
  • Metals possess metallic luster which decreases due to atmospheric oxygen and moisture
  • Metals are ductile (can be drawn into wires) and malleable (can be hammered into sheets)
2

Chemical Properties of Metals

  • Metals are electropositive elements - they lose electrons easily to form positive ions
  • Metals react with oxygen to form metal oxides: 4Na + O₂ → 2Na₂O
  • Some metal oxides are soluble in water and form alkalis: Na₂O + H₂O → 2NaOH
3

Reactivity Series of Metals

  • Arrangement of metals in increasing or decreasing order of reactivity
  • Order: K > Na > Ca > Mg > Al > Zn > Fe > Pb > H > Cu > Hg > Ag > Au > Pt
  • Highly reactive metals: K, Na, Ca, Mg, Al
4

Chemical Properties of Nonmetals

  • Nonmetals are electronegative elements - they gain electrons to form negative ions
  • Nonmetals react with oxygen to form acidic oxides: C + O₂ → CO₂
  • Some nonmetals form neutral oxides: 2C + O₂ → 2CO

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Full Notes

Key Concepts

Metals exist mainly in solid stateNonmetals exist in solid or gaseousMetals are electropositive elements that loseThe arrangement of metals in orderCompounds formed by the transfer

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Frequently Asked Questions

What are the important topics in Metallurgy for Maharashtra Board Class 10 Science?

Metallurgy covers several key topics that are frequently asked in Maharashtra Board Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.