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प्रश्न
Give two important uses of baking soda.
उत्तर
Two important uses of baking soda are:
- It is mainly used in the preparation of baking powder. Baking powder is a mixture of baking soda and a mild acid known as tartaric acid. When it is heated or mixed in water, it releases CO2 that makes bread or cake fluffy.
- It is used in soda-acid fire extinguishers.
- It can be used to test the garden soil for acidity. If bubbles develop, then the soil Is too acidic
- If used on washing car, it will remove dead bug bodies without damaging the color or paint on the car.
- It is used in medicines as an antacid to remove the acidity of the stomach. Therefore, it is an important constituent of an antacid.
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संबंधित प्रश्न
When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with brisk effervescence. Name this gas. Describe the method of testing this gas.
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?
Name an acid which is present in baking 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.
What are the materials used for the preparation of bleaching powder?
The formula of baking soda is:
(a) K2CO3
(b) KHCO3
(c) NaHCO3
(d) Na2CO3
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?
The chemical name of baking soda is ______.
Salt 'P', commonly used in bakery products, on heating gets converted into another salt 'Q' which itself is used for the removal of hardness of water and a gas 'R' is evolved. The gas 'R', when passed through freshly prepared lime water, turns milky. Identify 'P', 'Q' and 'R', giving a chemical equation for the justification of your answer.
Which one of the following salts does not contain water of crystallisation?
NaHCO, formed by reaction of ____________.
For making cake, baking powder is taken. If at home your mother uses baking soda instead of baking powder in cake,
- how will it affect the taste of the cake and why?
- how can baking soda be converted into baking powder?
- what is the role of tartaric acid added to baking soda?
