Advertisements
Advertisements
प्रश्न
Explain the term double decomposition precipitation reaction.
Advertisements
उत्तर
Double decomposition reaction is a precipitation reaction. i. e. in which ppt. is formed
“Reaction between two compounds in the aqueous state, to give two new compounds one of which is precipitate (or insoluble).”
APPEARS IN
संबंधित प्रश्न
Explain, giving one example of the following chemical change:
Thermal dissociation
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 coloured substance which decomposes violently leaving a coloured residue and evolving two neutral gases one of which is unreactive or inert in nature.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Mercury [II] oxide
Define the following type of chemical change or reaction with a suitable example.
Direct combination reaction or synthesis
Define the following type of chemical change or reaction with a suitable example.
Displacement reaction or substitution reaction
Convert hydrogen to hydrogen chloride by a direct combination reaction.
Give a balanced equation for thermal decomposition of lead nitrate
Give a reason why zinc displaces hydrogen from dilute sulphuric acid but copper does not.
Differentiate between the following:
Synthesis reaction and a substitution reaction.
Chemical reaction in which reactants react to form products and the products formed react with each other directly to form the original reactants back is known as ______ reaction.
