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1.
In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature?
2.
Which of the following gases can be used for storage
3.
A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disap
4.
Pb + CuCl2 → PbCl2 + Cu
The above reaction is an example of:5.
Name the products formed when iron filings are heated with dilute hydrochloric acid
6.
Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is:
7.
When S02 gas is passed through saturated solution of H2S, which of the following reaction occurs?
8.
A substance added to food containing fats and oils is called:
9.
The condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called:
10.
What type of chemical reactions take place when electricity is passed through water?