Advertisements
Advertisements
प्रश्न
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
Advertisements
उत्तर
Action of heat on:
\[\ce{\underset{\text{White}}{2Zn[NO3]2} -> \underset{\text{yellow - hot white - cold}}{2ZnO} + \underset{\text{Nitrogen dioxide}}{4NO2} + O2}\]
APPEARS IN
संबंधित प्रश्न
What are oxides ?
Name affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.
Give a chemical test to distinguish between the following gases.
CO2 and SO2
Give a chemical test to distinguish between the following gases.
NH3 and HCl
What do you observe when CO2 is passed through lime water first and then a little in excess.
A chemical reaction is often accompanied by external indications or characteristics which include –
- Colour change
- Effervescence or gas evolved
- Evolution or absorption of heat
- Formation of a precipitate.
With reference to each of the above indications, state the external indication seen during – Addition of dilute acid to an active metal.
A chemical reaction is often accompanied by external indications or characteristics which include –
- Colour change
- Effervescence or gas evolved
- Evolution or absorption of heat
- Formation of a precipitate.
With reference to each of the above indications, state the external indication seen during – Thermal decomposition of mercury [II] oxide.
Give balanced equation for the following conversion affected by heat alone on the substance:
Ammonium dichromate to nitrogen
The chemical name of baking soda is sodium bicarbonate.
Write a note on the following:
Curdling of milk
