Advertisements
Advertisements
प्रश्न
A metal which produces hydrogen on reacting with alkali as well as with acid.
पर्याय
Iron
Magnesium
Zinc
Copper
Advertisements
उत्तर
Zinc
Explanation:
With base: \[\ce{Zn + 2NaOH -> \underset{\text{Sodium zincate (Colourless)}}{Na2ZnO2 + H2}}\]
With acid: \[\ce{Zn + 2HCl -> ZnCl2 + H2}\]
संबंधित प्रश्न
Write the probable colour of the following salt:
Ammonium salts
Write the probable colour of the following salt:
Aluminium Salts
Write the probable colour of the following salt:
Iron (III) chloride
Write the probable colour of the following salts:
Calcium carbonate
Write the colour of the following salts: Cuprous salts.
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.
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'.
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'.
Sodium sulphate solution and sodium chloride solution.
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'.
Calcium nitrate solution and zinc nitrate solution.
| 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.
