Advertisements
Advertisements
प्रश्न
Match the compounds given in Column I with their uses mentioned in Column II.
| Column I | Column II |
| (i) CaCO3 | (a) Dentistry, ornamental work |
| (ii) Ca(OH)2 | (b) Manufacture of sodium carbonate from caustic soda |
| (iii) CaO | (c) Most negative E value among alkali O metals. |
| (iv) CaSO4 | (c) Manufacture of high-quality paper |
| (d) Used in white washing |
Advertisements
उत्तर
| Column I | Column II |
| (i) CaCO3 | (c) Manufacture of high-quality paper |
| (ii) Ca(OH)2 | (d) Used in white washing |
| (iii) CaO | (b) Manufacture of sodium carbonate from caustic soda |
| (iv) CaSO4 | (a) Dentistry, ornamental work |
Explanation:
(i) CaCO3 is used in manufacturing of high-quality paper.
(ii) Due to the disinfectant nature of Ca(OH)2 is used in white wash.
(iii) CaO is used in the manufacture of sodium carbonate from caustic soda.
(iv) CaSO4 is used in dentistry, ornamental work and for making statues.
APPEARS IN
संबंधित प्रश्न
Find the oxidation state of sodium in Na2O2.
Potassium carbonate cannot be prepared by Solvay process. Why?
Starting with sodium chloride how would you proceed to prepare sodium metal.
What happens when sodium metal is dropped in water?
Write a balanced equation for the reaction between Na2O2 and water.
Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?
The formula of soda ash is ______.
A chemical A is used for the preparation of washing soda to recover ammonia. When CO2 is bubbled through an aqueous solution of A, the solution turns milky. It is used in whitewashing due to disinfectant nature. What is the chemical formula of A?
When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?
(i) H+ ions
(ii) Mg2+ ions
(iii) Ca2+ ions
(iv) \[\ce{SO^{2-}4}\] ions
Complete the following reactions.
\[\ce{O^{2-}2 + H2O ->}\]
Complete the following reactions.
\[\ce{O^{-}2 + H2O ->}\]
In the Solvay process, can we obtain sodium carbonate directly by treating the solution containing (NH4)2CO3 with sodium chloride? Explain.
\[\ce{NaOH}\] is manufactured by the electrolysis of brine solution. The products of the reaction are ______.
Amongst baking soda, caustic soda and washing soda, carbonate anion is present in ______.
The pair of compounds which cannot exist together in solution is ______.
