Advertisements
Advertisements
प्रश्न
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process.
Advertisements
उत्तर
(a) Add a few drops of water in the test tube containing gas. Now, cover the test tube and shake it well. After shaking, test the solution with blue litmus and red litmus. It will turn blue litmus red. Thus, the gas is acidic in nature.
(b) Charcoal reacts with oxygen to form carbon dioxide gas.
Carbon dioxide reacts with water to form carbonic acid, which turns blue litmus paper red.
संबंधित प्रश्न
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
Give a reason for Alkali metals are good reducing agents.
Give reasons
Graphite is used in the leads of pencils
Name a metal which is best conductor of electricity :
State two important uses of following metal:
Uses of silver
With reference to the following metals state their use in daily life metal:
Lead
State why telegraph poles are painted with aluminium paint.
Soft metal : Na : : hard metal : _______
Can you store pickle in an aluminium utensil? Give reason.
The metal can be cut with a knife ______.
