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प्रश्न
Fill in the following blank:
Rock salt is mined just like ......................
उत्तर
Rock salt is mined just like coal.
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संबंधित प्रश्न
What are the two main ways in which common salt (sodium chloride) occurs in nature?
How is common salt obtained from sea-water?
What is meant by 'a family of salts'? Explain with examples.
The metal salt A is blue in colour. When salt A is heated strongly over a burner, then a substance B is eliminated and a white powder C is left behind. When a few drops of a liquid D are added to powder C, it becomes blue again. What could be A, B, C and D
Give one example of a salt which gives an aqueous solution having:
pH more than 7
Consider the following salts:
Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH4)2SO4
Which of salts will give:
neutral solutions?
You are asked to prepare hard water in your laboratory. Select a group from the following groups of salts, any salt of which you may dissolve in distilled water to obtain hard water.
(A) NaCl; Na2SO4; KCl
(B) NaCl; CaCl2; KCl
(C) CaCl2; CaSO4; MgSO4
(D) Na2SO4; CaSO4; MgSO4
Taking sodium carbonate as an example, give the meaning of the following terms: Water of crystallization.
Write any five uses of salts.
Many salts absorb water from the atmosphere. This property is called:
