NCERT Question 12

Write one equation each for decomposition reactions with heat, light, and electricity.

Answer:

• Heat:
  CaCO₃ → heat^  CaO + CO₂​

• Light:
  2AgCl → sunlight^  2Ag + Cl₂​

• Electricity:
  2H₂O → electricity^ 2H₂ + O₂​