Advertisements
Advertisements
प्रश्न
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Ammonium dichromate.
Advertisements
उत्तर
Solid residual product of thermal decomposition of:
| Ammonium dichromate is | \[\ce{\underset{\text{chromium oxide or chromic oxide}}{Cr2O3}}\] | Green |
APPEARS IN
संबंधित प्रश्न
FILL IN THE BLANK
A .............. change is a temporary change.
FILL IN THE BLANK
........... electrolytes dissociate completely in aqueous state and allow large amount of electricity to flow through it.
TRUE \ FALSE
Electrolytic refining is a method in which a thin coating of a metal is done over another metal.
State four conditions necessary for a chemical reaction to take place.
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 |
Give reason for the following:
A characteristic change of colour is seen when a piece of iron is added to copper [II] sulphate solution.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Zinc carbonate.
Chemists identify gypsum as a natural indicator.
Which of the following is a chemical change?
Why is spoiling food a chemical change?
