Advertisements
Advertisements
प्रश्न
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 |
Advertisements
उत्तर
| Hydrogen | Oxygen | Carbon dioxide | Chlorine | |
| Litmus test | Neutral | Neutral | Acidic | Acidic |
| Apply a burning splint to the gas | Pale blue flame | rekindles a glowing wooden splinter. | moist blue litmus faint red | White precipitate |
| Colour of gas | colourless | colourless | colourless | greenish-yellow |
| Odour of gas | Odourless | Odourless | Odourless | Pungent, choking |
APPEARS IN
संबंधित प्रश्न
Explain the following reaction with one suitable example of Decomposition reaction
Give an example of a reaction where the following are involved
Heat
Name: Gas with rotten egg smell.
What do you observe when H2S is passed through a lead nitrate solution.
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A white solid which evolves two colourless gases which on cooling combine and condense on the cooler parts of the test tube.
Give two examples where a chemical reaction is accompanied by a change in colour of the reactants and products on completion of the reaction.
Give a balanced equation for the conversion of an ammonium salt to a basic gas.
Write some materials prepared by chemical changes.
Heat may evolve or be absorbed during a ______ change.
Write a note on the catalyst.
