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प्रश्न
State your observation for the following case :
Moist blue litmus is introduced into a gas jar of sulphur dioxide.
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उत्तर
Litmus turns blue to red, and then gets bleached.
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संबंधित प्रश्न
Why is water not added to concentrated H2SO4 in order to dilute it?
Why is H2SO4 is not used as a drying agent for H2S?
Give reason for the following:
Sulphuric acid can form two kinds of salts with sodium chloride.
Choose the current answer from the options given below :
When conc. H2SO4 comes in contact with sugar, it becomes black due to
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Carbon dioxide
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.
Write the equation of the following reaction:
Sulphur is heated with concentrated sulphuric acid.
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
Dilute sulphuric acid will produce a white precipitate when added to a solution of ______.
Differentiate between the following pair based on the criteria given in the bracket:
Cane sugar and hydrated copper sulphate [using concentrated H2SO4]
