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Unit - 2.1 Physical and Chemical Changes CHEMISTRY - Unit - 2.1 Physical and Chemical Changes

ICSE - STD 7 - CHEMISTRY (ICSE - English Medium). 28 questions in this chapter.

Question types

Unit - 2.1 Physical and Chemical Changes question types

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

28
Questions
7
Question groups
5
Question types
Sample Questions

Unit - 2.1 Physical and Chemical Changes questions

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

Q 1MCQ1 Mark
An example of a chemical change is
  • ✓
    exposing photographic film to sunlight
  • B
    tearing of paper
  • C
    melting of butter
  • D
    formation of clouds

Answer: A.

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Q 2MCQ1 Mark
An example of a physical change is
  • ✓
    magnetism of iron
  • B
    burning of wood
  • C
    photosynthesis by plants
  • D
    digestion of food

Answer: A.

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Q 3MCQ1 Mark
A physical change is a
  • A
    Temporary change
  • B
    Permanent change
  • ✓
    Temporary change which can be reversed
  • D
    None of these

Answer: C.

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Q 4MCQ1 Mark
A chemical change involves
  • A
    Change of state only
  • ✓
    Change of colour only
  • C
    Change in state as well as composition
  • D
    none of these

Answer: B.

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Q 5MCQ1 Mark
Chemical changes are the result of absorption or release of
  • ✓
    Heat energy only
  • B
    light energy only
  • C
    sound energy only
  • D
    Some kind of energy

Answer: A.

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Q 22Match The Following.4 Marks
Column AColumn B
1. Crushing of an ice cube.(a) Heat
2. Making of curd from milk.(b) Physical change
3. Plants making their food during sun-shine.(c) Chemical change
4. The energy given out/absorbed during a chemical change.(d) Photosynthesis
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