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प्रश्न
Complete the table given below.
| Heat on copper carbonate | Test for gas evolved |
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उत्तर
| Heat on copper carbonate | Test for gas evolved | Colourless (CO2 Carbon dioxide) |
APPEARS IN
संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Compounds, which in their molten state allow an electric current to pass through them are called
- electrolytes
- non-electrolytes
- non-conductors
- none of these
FILL IN THE BLANK
Negatively charged ions are called ..........
TRUE \ FALSE
Weak electrolytes dissociate partially in their aqueous or fused state.
Name the type of chemical reaction shown by the following equation:
NaOH + HCl → NaCl + H2O
Give an example of a reaction where the following are involved
Light
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 white solid which evolves two colourless gases which on cooling combine and condense on the cooler parts of the test tube.
______ change results in the change of the substance.
______ occurs in the absence of air and in the presence of micro-organisms such as yeast.
Write a note on the following:
Curdling of milk
Write the effects of chemical reactions.
