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प्रश्न
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
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उत्तर
Sodium chloride solution and sodium nitrate solution:
Add freshIy prepared ferrous suIphate solution to the two solutions. Then by the side of the test tube, pour concentrated sulphuric acid to each slowly. The one in
which brown ring appears is sodium nitrate solution while the other is sodium chIoride solution.
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संबंधित प्रश्न
Write the probable colour of the following salt:
Ferrous salts
Write the probable colour of the following salt:
Ammonium salts
Name the probable cation present in each of the following solution:
Yellow coloured solution
Name the probable cation present in each of the following solution:
Light blue coloured solution
A metal whose alloy finds use in the construction of aircrafts in the powdered form is added to sodium hydroxide solution. A colourless gas was evolved and after reaction was over, the solution was colourless.
(a) Name the powdered metal added to sodium hydroxide solution.
(b) Name the gas evolved.
(c) Name the salt present in the colorless solution.
Fill in the blanks.
Salts of ______ [normal / transition] elements are generally coloured. From the ions K1+, Cr3+, Fe2+, Ca2+, \[\ce{SO^2-_3}\], \[\ce{Mn^1-_4}\],\[\ce{NO^1_3}\] the ions generally coloured are ______.
State what do you observe when:
Lead nitrate and sodium chloride are mixed.
Name :
a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
Colour of an aqueous solution of copper sulphate is ______.
| Abhishek was given a salt ‘X’ which was white in colour for analysis. On strong heating, it produced a yellow residue, a colourless gas and also a reddish-brown gas. The solution of the salt ‘X’, when tested with an excess of ammonium hydroxide, produced a chalky white insoluble precipitate. |
- Name the coloured gas that evolved when Abhishek heated the salt strongly.
- Which cation was present in the sample given to Abhishek?
- Identify the salt given to Abhishek for analysis.
