Question

How is the heating of the sugar is different from heating of ammonium chloride.Explain the answer
NCERT -Class 9
Chapter 1-Matter In Our Surroundings

Answer 1

Q-1=How is the heating of the sugar is different from heating of ammonium chloride.Explain the answer

Ans= heating of the sugar is different from heating of ammonium chloride because heating of sugar does not make any change whereas   heating of ammonium chloride sublimes it 

Answer 2

When we heat sugar a black carbon residue is formed. It is also a chemical, irreversible and permanent change. 
When we heat ammonium chloride it sublimes without melting. It is also a physical, temporary and reversible change.
------------------------------------------------------------------------------------------------------