Advertisements
Advertisements
प्रश्न
Why is Concentrated sulphuric acid kept in air tight bottles?
उत्तर
Concentrated sulphuric acid is a hygroscopic substance that absorbs moisture when exposed to air. Hence, it is stored in airtight bottles.
APPEARS IN
संबंधित प्रश्न
Write a balanced chemical equation for the following:
Action of concentrated sulphuric acid on Sulphur.
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with Ethanol?
Name the products formed when hot and concentrated sulphuric acid reacts with Sulphur.
What would you observe in the following case?
Hot concentrated sulphuric acid is added to sodium chloride crystals.
Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.
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.
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?
Complete the table given below:
| Name of the process | Reactants | Acid product formed |
| (a) ______ | Nitrogen dioxide + water + oxygen | (b) ______ |
| (c) ______ | Oleum + water | Sulphuric acid |
A, B and C are the chemical properties of sulphuric acid:
A. Oxidizing agent
B. Dehydrating agent
C. Non-volatile acid
Match the following equations 1 to 3 to the above chemical properties of sulphuric acid.
1. \[\ce{KNO3 + H2SO4 -> KHSO4 + HNO3}\]
2. \[\ce{C12H22O11 -> 12C + 11H2O}\]
3. \[\ce{S + 2H2SO4 -> 2H2O + 3SO2}\]
