Advertisements
Advertisements
प्रश्न
Match the statements in column A with that in column B.
| Column A | Column B |
| (a) deliquescent substance | (1) sodium bicarbonate |
| (b) hygroscopic substance | (2) magnesium chloride |
| (c) efflorestance substance | (3) conc. sulphuric acid |
| (d) substance causing temporary hardness | (4) washing soda |
Advertisements
उत्तर
| Column A | Column B |
| (a) deliquescent substance | (2) magnesium chloride |
| (b) hygroscopic substance | (3) conc. sulphuric acid |
| (c) efflorestance substance | (4) washing soda |
| (d) substance causing temporary hardness | (1) sodium bicarbonate |
APPEARS IN
संबंधित प्रश्न
Name the gas produced when fossil fuel is burnt.
Give balanced chemical equations to show the reaction between Magnesium and water.
How are clouds formed?
What is the effect of impurities present in the water on the melting point and boiling point of water?
Explain why:
If distilled water is kept in a sealed bottle for a long time, it leaves etchings on the surface of the glass.
Of the total water available on the earth, fresh water forms ______ percent.
Give the importance of dissolved minerals & salts.
Select the correct word from the words in option to complete the sentence:
If pressure on the surface of water increases its boiling point ____ and freezing point ____.
Water changes to ice at ______.
Write any two activities which require more than a bucket of water.
