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प्रश्न
Write balanced equation for the following reaction:
Sulphur dioxide and sodium hydroxide solution
(Give the equation for the formation of the normal salt)
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उत्तर
\[\ce{SO2+ 2NaOH -> Na2SO3 + H2O}\]
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संबंधित प्रश्न
Write the probable colour of the following salt:
Ammonium salts
Write the probable colour of the following salt:
Calcium salts
Write the probable colour of the following salt:
Potassium nitrate
Name the probable cation present in each of the following solution:
Pink coloured solution
Write the colour of the following salt : Ferrous salts.
On adding dilute ammonia solution to a colourless solution of a salt, a white gelatinous precipitate appears. This precipitate, however, dissolves on addition of excess of ammonia solution. Identify (Choose from Na, Al, Zn, Pb, Fe).
- Which metal salt solution was used?
- What is the formula of the white gelatinous precipitate obtained?
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 ______.
Name :
a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
A metal which produces hydrogen on reacting with alkali as well as with acid.
| 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.
