Advertisements
Advertisements
प्रश्न
Define the following term:
Precipitate
Advertisements
उत्तर
Chemical reactions which are characterised by the formation of insoluble solid substances are called precipitates.
APPEARS IN
संबंधित प्रश्न
FILL IN THE BLANK
In a double decomposition precipitation reaction both the reactants must be ............ soluble.
TRUE \ FALSE
Temperature at which a liquid starts boiling is known as the boiling point of that liquid. True or false ?
Define electrolysis.
Name affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.
Distinguish by dilute sulphuric acid.
Sodium Sulphite and sodium carbonate?
Give a word equation for the following reaction.
A salt which reacts with ammonium hydroxide to give a reddish brown precipitate.
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
Explain the Silver nitrate solution is kept in coloured reagent bottles in the laboratory.
Mention the various conditions required for a chemical reaction to occur.
Classify the following processes into physical or chemical changes:
- Beating of aluminium metal to make aluminium foil.
- Digestion of food.
- Cutting of a log of wood into pieces.
- Burning of crackers.
