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प्रश्न
Raisins are wiped off gently before final weighing with the help of
विकल्प
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
What is a chemical equation? Explain with the help of an example.
Balance the following equation. Also name the products formed.
`"Mg" + "O"_2 → "MgO"`
Balance the following equation:
S + H2SO4 → SO2 + H2O
Define: Endothermic reaction
Write word equation for the following molecular equation:
\[\ce{H2 [g] + Cl2 [g] ->[sunlight] 2HCl}\]
Word equation:
State which form of energy is utilised in the above chemical reaction.
Give word equation for the following chemical reaction and give the names of the product formed.
NH3 + HCl→ NH4Cl
Name the following:
The silvery residue obtained on heating mercury [II] oxide.
Balance the following simple equation:
Al + H2O → Al2O3 + H2
Write a balanced equation for the following word equation:
Potassium nitrate → Potassium nitrite + Oxygen
Give a balanced equation by the partial equation method, [steps are given below].
Oxidation of Lead [II] Sulphide by Ozone
- Ozone first decomposes to give molecular oxygen & nascent oxygen.
- Nascent oxygen then oxidises lead [II] sulphide to lead [II] sulphate.
