Q 1. What is meant by a substance?
Substance- A substance is a matter which consists of a single type of particles and has specific properties.
For examples tin, sulphur, pure sugar (sucrose) etc.
CBSE Board 2026: Class 10, 12 admit card out for private candidates; exam from February 17
CBSE launches psycho-social counselling services for Class 10, 12 students ahead of board exams 2026
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