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प्रश्न
From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:
[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]
On heating, this salt gives a yellow residue when hot and white when cold
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उत्तर
On heating, this salt gives a yellow residue when hot and a white residue when cold = ZnCO3
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संबंधित प्रश्न
Write a balanced equation for the preparation of the following salts:
Zinc carbonate from Zinc sulphate
What are the two main ways in which common salt (sodium chloride) occurs in nature?
What is meant by 'hydrated' and 'anhydrous' salts? Explain with examples.
Write the names, formulae and colours of any two hydrated salts.
P and Q are aqueous solutions of sodium chloride and sodium hydroxide, respectively. Which of these will turn:
(a) blue litmus red?
How many molecules of water of crystallisation (per formula unit) are present in:
copper sulphate crystals?
Explain ‘salt hydrolysis’
State one observation for each of the following :
Lead nitric is heated strongly in a test tube.
Name gases which has a sour taste.
Identify the following substance:
Gas C has an offensive smell like rotten eggs.
