Advertisements
Advertisements
प्रश्न
Give two examples for each of the following cases:
Chemical changes.
उत्तर
(i) Burning of paper
(ii) Curdling of milk
APPEARS IN
संबंधित प्रश्न
Give reason.
Acidic soil is treated with quick lime.
Give reason.
Wasp sting is treated with vinegar.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer
Which of the following is a reducing agent?
- oxygen
- chlorine
- hydrogen
- none of these
TRUE \ FALSE
Ammonia is a good oxidizing agent.
Differentiate between in Chemical reaction and chemical equation.
Explain the term ‘chemical reaction’ with special reference to – ‘reactants’ and ‘products’.
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper carbonate to copper oxide
State the following reaction represent oxidation or reduction.
\[\ce{Al->Al+++}\]
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
When lithium metal is placed in hydrochloric acid, _______ gas is evolved.
