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प्रश्न
Dilute hydrochloric acid and dilute sulphuric acid are both colourless solutions. How will the addition of barium chloride solution to each help to distinguish between the two?
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उत्तर
When barium chloride is added to dilute sulphuric acid, white precipitate of barium sulphate is formed but with dilute hydrochloric acid no change is observed.
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संबंधित प्रश्न
The acid which is used in the preparation of a volatile acid
Give one equation to show the following properties of sulphuric acid:
Dehydrating property
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with carbon?
Give reason for the following:
When carbon is heated with concentrated sulphuric acid, carbon dioxide is formed.
Give reason for the following:
Cotton clothes get burnt with concentrated 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 the observation for the following:
Decomposition of bicarbonates by dil. H2SO4.
\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
State your observation of the following case:
When dilute hydrochloric acid is added to sodium carbonate crystals.
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with iron (II) sulphide.
Hydrogen chloride gas is prepared in the laboratory by the action of concentrated sulphuric acid on sodium chloride.
State the method of collection of the gas formed above.
