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प्रश्न
Classify the following as physical or chemical properties
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
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उत्तर
Chemical property
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संबंधित प्रश्न
Write the chemical reaction where the following changes are observed.
Precipitate is formed
Complete and balance the following reaction:
\[\ce{NH3 + O2 ->[\Delta]}\]
State the original colour of the following substance and colour of residue obtained after heating.
Lead nitrate
Give reason for the following:
Electrolytic decomposition of water is a reaction involving change of state.
Give balanced equation for the following conversion affected by heat alone on the substance:
Ammonium dichromate to nitrogen
State the following reaction represent oxidation or reduction.
\[\ce{Fe++->Fe+++}\]
Explain with the help of balanced equations, how precipitation reactions are used for identifying the positive radicals in three different salts, each having a different cation [positive ion].
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
Can a nickel spatula be used to stir copper sulphate solution? Justify your answer.
Acid rain is a result of ______.
