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प्रश्न
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
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उत्तर
When conc. H2SO4 is added to a crystal of hydrated copper sulphate, it removes water of crystallisation from salt.
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संबंधित प्रश्न
State one relevant observation for given reactions:
Addition of ethyl alcohol to acetic acid in the presence of concentrated Sulphuric acid
Write balanced chemical equations to show The dehydrating property of conc. Sulphuric acid with sugar.
Identify the acid in the following case:
The acid on mixing with lead nitrate solution produces a white precipitate, which is insoluble even on heating.
Name the products formed when hot and concentrated sulphuric acid reacts with Sugar.
Why is concentrated sulphuric acid kept in air tight bottles?
What would you observe in the following case?
Concentrated sulphuric acid is added to equal volumes of cold water.
Choose the current answer from the options given below :
When conc. H2SO4 comes in contact with sugar, it becomes black due to
What do you observe when barium chloride solution is added to dilute sulphuric acid?
A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (ii).
A. Dilute acid (typical acid properties)
B. Non-volatile acid
C. Oxidizing agent
D. Dehydrating agent
(i) Preparation of hydrogen chloride.
(ii) Preparation of ethane from ethanol
(iii) Preparation of copper sulphate from copper oxide.
Write balanced chemical equation to show :
The dehydrating property of conc. sulphuric acid
