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प्रश्न
Give a chemical test to distinguish between the following gases.
NH3 and SO2
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उत्तर
| Ammonia (NH3) | Sulphur dioxide (SO2) | |
| Litmus test | Moist red litmus blue. | Moist blue litmus red. |
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संबंधित प्रश्न
Fill in the blank
A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Water
Give an example of a reaction where the following are involved
Catalyst
What do you observe? When
Water is added to the quick lime.
What is observed in performing the following :
| Hydrogen | Oxygen | Carbon dioxide | Chlorine | |
| Litmus test | ||||
| Apply a burning splint to the gas | ||||
| Colour of gas | colourless | colourless | colourless | greenish-yellow |
| Odour of gas |
What do you observe when Cobalt chloride paper is introduced in water vapour.
Distinguish by dilute sulphuric acid.
Sodium sulphide and sodium sulphite?
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
What is the role of a catalyst in a chemical reaction?
______ change results in the change of the substance.
