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Question
What are the materials used for the preparation of bleaching powder?
Solution
The substances used for the preparation of bleaching powder are chlorine (Cl2) and slaked lime [Ca(OH)2].
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RELATED QUESTIONS
Write two applications of sodium bicarbonate (baking soda).
A student takes about 2 mL ethanoic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He reports the following observations:
I. Immediately a colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when passed through it.
III. The gas burns with an explosion when a burning splinter is brought near it.
IV. The gas extinguishes the burning splinter that is brought near it.
The correct observations are
(A) I, II and III
(B) II, III and IV
(C) III, IV and I
(D) I, II and IV
Name the substance which on treatment with chlorine yields bleaching powder?
Describe how sodium hydrogencarbonate (baking soda) is produced on a large scale. Write equation of the reaction involved.
How does baking powder differ from baking soda?
Explain the action of baking powder in the making of cake (or bread). Write equation of the reaction involved.
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
Which compound is a part of baking powder?
(i) Name the products formed when sodium hydrogen carbonate is heated.
(ii) Write the chemical equation for the reaction involved in the above.
Which one of the following salts does not contain water of crystallisation?
Mild non-corrosive basic salt is ______.
