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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.
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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
Give reasons for the following.
Copper cannot displace zinc from its salt solution.
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
What happens when Iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved.
State one use of the following metal:
Copper
Give reasons
Aluminium is used in making aircrafts.
Write ‘true’ or ‘false’ for the following statement :
Silver is used to make electric cables.
Statements given below are incorrect. Write the correct statements :
Bronze is a mixture of 10% copper, 80% zinc and 10% tin.
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
State why telegraph poles are painted with aluminium paint.
Metals and non–metals are used for making ______, ______ and ______.
