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प्रश्न
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
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उत्तर
When sulphur is added to hot and conc. HNO3 formation of oxide or oxy-acid will occur.
\[\ce{S + 6HNO3 -> H2SO4 + 2H2O + 6NO2}\]
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संबंधित प्रश्न
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent.
Name the Following:
Two coloured nitrates.
Give three equations of the reaction to prove that nitric acid is an acid.
How will you prepare Aqua regia from nitric acid?
Choose the correct answer from the option given below:
The catalyst used in the manufacture of HNO3 by Ostwald process is
Name the product, catalyst and approximate temperature maintained in Ostwald's process. How is the temperature maintained in the Ostwald's process?
Copy and complete the following table relating to important industrial processes output refers to the product of the process not the intermediate steps.
| Name of process | Inputs | Catalyst | Equation for catalysed reaction | Output |
| Haber process | Hydrogen + | |||
|
Ammonia + |
Nitric acid |
Name the gas evolved:
The gas produced on heating sodium nitrate.
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
X, Y and Z are three crystalline solids that are soluble in water and have a common anion.
To help you to identify X, Y and Z, you are provided with the following experimental observations. Copy and complete the corresponding inferences in (a) to (e).
- A reddish-brown gas is obtained when X, Y and Z are separately warmed with concentrated sulphuric acid and copper turning added to the mixture.
INFERENCE 1: The common anion is the ______ ion. - When X is heated, it melts and gives off only one gas which re-lights a glowing splint.
INFERENCE 2: The cation in X is either ______ or ______. - The action of heat on Y produces a reddish-brown gas and yellow residue which fuses with a glass of the test tube.
INFERENCE 3: The metal ion present in Y is the ______ ion. - When Z is heated, it leaves no residue. Warming Z with sodium hydroxide solution liberates a gas which turns moist red litmus paper blue.
INFERENCE 4: Z contains the ______ cation. - Write the equations for the following reactions:
- X and concentrated sulphuric acid (below 200°C). (One equation only for either of the cations given in INFERENCE 2)
- The action of heat on Y.
- Concentrated nitric acid is added to copper turnings kept in a beaker.
