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प्रश्न
Name (formula is not acceptable) the gas produced in the following reaction:
By the action of concentrated nitric acid on copper.
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उत्तर
Nitrogen dioxide
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संबंधित प्रश्न
The action of heat on the blue crystalline solid X gives a reddish brown gas Y, a gas which re-lights a glowing splint and leaves a black residue. When gas Z, which has a rotten egg smell, is passed through a solution of X, a black ppt. is formed.
- Identify X, Y and Z.
- Write the equation for the action of heat on X.
- Write the equation between solution X and gas Z.
Name the Following:
Salt used in the laboratory to prepare nitric acid
What is the purpose of Conc. H2SO4 in the above preparation?
Why is the temperature maintained at 200°C in the above reaction?
Write balanced equation and name the product formed when :
Cupric oxide reacts with nitric acid.
What do you observe when?
Concentrated nitric acid is dropped on a hot surface?
Choose the correct answer from the option given below :
Nitric acid on standing develops brownish colour which may be attributed to the presence of :
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
What would you observe in the following case:
Copper is heated with concentrated nitric acid in a hard glass test tube.
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
