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प्रश्न
State two uses each of the following compounds:
Hydrogen
उत्तर
Hydrogen:
(i) It is used in the hydrogenation of oils to obtain solid fats called vegetable ghee.
(ii) Liquid hydrogen is used as a fuel for rockets.
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संबंधित प्रश्न
Name the sodium compound which is used for softening hard water.
Name a metal carbonate which is soluble in water.
Name the metal whose carbonate is known as washing soda.
What is the common name of (a) NaHCO3 and (b) Na2CO3.10H2O?
Fill in the following blank:
Chemical formula of washing soda is ..................
Explain why an aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic (or alkaline). Write chemical equations of the reactions involved.
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
Which four substances are utilised in the production of washing soda?
The number of molecules of water of crystallization in washing soda is ______.
Chemical formula of washing soda is ____________.
Correct the wrong statement given below:
Magnesium hydroxide is used in whitewashing buildings.
