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प्रश्न
Describe two important uses of each of the following caustic soda.
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उत्तर
Uses of caustic soda
- It is used in the soap industry.
- It is used as a reagent in a laboratory.
संबंधित प्रश्न
Describe two important uses of the following sodium carbonate.
What happens when sodium metal is dropped in water?
What happens when sodium metal is heated in the free supply of air?
State as to why a solution of Na2CO3 is alkaline?
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?
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.
Match the elements given in Column I with the colour they impart to the flame given in Column II.
| Column I | Column II |
| (i) Cs | (a) Apple green |
| (ii) Na | (b) Violet |
| (iii) K | (c) Brick red |
| (iv) Ca | (d) Yellow |
| (v) Sr | (e) Crimson red |
| vi) Ba | (f) Blue |
\[\ce{NaOH}\] 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 ______.
