Advertisements
Advertisements
प्रश्न
Complete the table given below.
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
Advertisements
उत्तर
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained | K2SO4 Residue is potassium sulphate |
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron pipes coated with zinc do not get rusted easily.
How do the following help in bringing about a chemical change?
light.
Define electrolysis.
Give reason for the following:
A characteristic change of colour is seen when a piece of iron is added to copper [II] sulphate 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 coloured substance which leaves on strong heating a black residue and evolves two colourless gases one of which is acidic and the other neutral.
Complete the table given below.
| Addition of dil. H2SO4 to zinc | Test for gas evolved |
Complete the statement by filling in the blank with the correct word:
The reddish-brown precipitate obtained during a double decomposition precipitation reaction between an iron salt and alkali is __________.
The changes in which new substance with new chemical properties are formed are ______.
______ is a chemical substance is used in whitewashing.
Define the following term:
Chemical change
