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प्रश्न
Rewrite the following statement by adding the correct word, as shown in the example:
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Example: Given Statement: Ammonia changes moist red litmus to blue. Correct Statement: Aqueous ammonia changes moist red litmus to blue. |
Sulphuric acid acts as a dehydrating agent.
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उत्तर
Concentrated sulphuric acid acts as a dehydrating agent.
Explanation:
Conc. \[\ce{H2SO4}\] has a strong affinity for water and so reduces it from the molecule, whereas dilute acid dissolves in water.
संबंधित प्रश्न
Write balanced chemical equations for the action of dilute sulphuric acid on sodium sulphite.
Give appropriate scientific reasons for The electrical conductivity of acetic acid is less in comparison to the electrical conductivity of dilute sulphuric acid at a given concentration.
State the inference drawn from the following observations:
Salt S is prepared by reacting dilute sulphuric acid with copper oxide. Identify S.
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
Give main difference between drying agent and dehydrating agent.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Lead sulphate from lead nitrate.
What would you observe in the following case:
Sugar crystals are added to a hard glass test tube containing concentrated sulphuric acid.
Write the balanced chemical equation for the following conversion:
Copper sulphate from copper and concentrated sulphuric acid.
Differentiate between the following pair based on the criteria given in the bracket:
Cane sugar and hydrated copper sulphate [using concentrated H2SO4]
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.
