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Unit - 3.2 Pure Substance, Mixture and Compound CHEMISTRY - Unit - 3.2 Pure Substance, Mixture and Compound

ICSE - STD 7 - CHEMISTRY (ICSE - English Medium). 31 questions in this chapter.

Question types

Unit - 3.2 Pure Substance, Mixture and Compound question types

31 questions across 7 question groups — pick any mix to generate a CHEMISTRY paper with step-by-step answer keys.

31
Questions
7
Question groups
5
Question types
Sample Questions

Unit - 3.2 Pure Substance, Mixture and Compound questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 2MCQ1 Mark
Sulphur and iron react on heating to form :
  • A
    Phosgene
  • ✓
    iron sulphide
  • C
    molten iron
  • D
    molten sulphur

Answer: B.

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Q 4MCQ1 Mark
Energy exchanges do take place in :
  • ✓
    Formation of mixture
  • B
    Formation of solution
  • C
    Formation of compound
  • D
    none of these

Answer: A.

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Q 5MCQ1 Mark
Human blood is a :
  • A
    homogeneous solution
  • ✓
    heterogeneous solution
  • C
    mixture
  • D
    none of these

Answer: B.

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Q 22Match The Following.4 Marks
Column AColumn
1. Iron and sulphur do not retain their properties in iron sulphide.(a) Homogeneous
2. Brass and bronze are two metal-metal mixtures with a special name.(b) Water
3. The solvent in a sugar solution.(c) Alloy
4. A mixture whose constituents are mixed uniformly.(d) Compound
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