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प्रश्न
Raisins are wiped off gently before final weighing with the help of
पर्याय
a filter paper
a cotton piece
a cloth piece
a polythene piece
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उत्तर
a filter paper
Raisins are wiped off gently before final weighing with the help of a filter paper.
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संबंधित प्रश्न
Balance the chemical equation.
\[\ce{HNO3 +Ca(OH)2 -> Ca(NO3)2 + H2O}\]
Give one example of a chemical reaction characterised by the formation of a precipitate.
What is a chemical equation?
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Define: Endothermic reaction
Balance the following simple equation:
Al + H2O → Al2O3 + H2
Write a balanced equation for the following word equation:
Potassium nitrate → Potassium nitrite + Oxygen
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Cl2 + 2H2O + SO2 → 4HCl + H2SO4
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Make a list of the elements in the chemical equation.
A student took a small amount of copper oxide in a conical flask and added dilute hydrochloric acid to it with constant stirring. He observed a change in colour of the solution.
- Write the name of the compound formed and its colour.
- Write a balanced chemical equation for the reaction involved.
