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Physical and Chemical Changes — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYPhysical and Chemical Changes1 Mark
MCQ
Chemical equation are balanced to satisfy the
  • ✓
    Law of conservation of mass
  • B
    Law of constant proportions
  • C
    Law of reciprocal proportions
  • D
    Law of multiple proportions.
✓

Answer

Correct option: A.
Law of conservation of mass
Law of conservation of mass

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