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प्रश्न
Give a chemical test to distinguish between the following gases.
SO2 and Cl2
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उत्तर
| Sulphur dioxide | Chlorine. |
| Colour of gas: The gas is colourless. | Colour of gas: The gas is greenish-yellow. |
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संबंधित प्रश्न
FILL IN THE BLANK
In a double decomposition precipitation reaction both the reactants must be ............ soluble.
FILL IN THE BLANK
Distillation is a method of obtaining pure ............. from a solution.
Explain the type of reactions on the basis of the direction of reaction.
Write true or false :
No new substance is formed during a chemical reaction.
Give an example of a photochemical reaction.
State the original colour of the following substance and colour of residue obtained after heating.
Lead nitrate
Complete the table given below.
| Flame test for calcium chloride | Acid used for flame test |
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
When lithium metal is placed in hydrochloric acid, _______ gas is evolved.
Chemical change is a temporary change.
