alleryMatch each observable reaction indicator with the chemical phenomenon:
A1-A, 2-B, 3-C
B1-B, 2-A, 3-C
C1-C, 2-B, 3-A
D1-A, 2-C, 3-B
Answer & Solution
Correct answer: A. 1-A, 2-B, 3-C
Effervescence signals CO2 gas. Iron in CuSO4 turns green FeSO4. Lead iodide forms a yellow precipitate.
Keep practising Chemical Changes and Reactions
Browse all Chemical Changes and Reactions questions for ICSE Class 9, or explore more Chemistry topics.
Related questions
Match each oxidation-reduction term with its electronic definition:Match each catalyst type with its operational effect on reactions:Match each reaction classification with its hallmark characteristic:A catalyst that exists in a different physical phase from reactants is:Chemical equilibrium in a reversible reaction is reached when:Dissolving ammonium nitrate salt in water is a classic example of an:The term endothermic was coined by which nineteenth-century chemist?The combustion of hydrocarbon fuels like natural gas is an example of an: