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प्रश्न
Complete and balance the following equation:
Cu + HNO3 → NO2 + ________+ _________
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उत्तर
Cu + 4HNO3 → Cu(NO3)2 + 2NO2 + 2H2O
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संबंधित प्रश्न
Give two chemical equations for the following:
Nitric acid showing as acidic character.
Write a balanced equation and name the products formed when cupric oxide reacts with nitric acid.
Name the process used for the manufacture of nitric acid.
Give reason for the following:
In laboratory preparation of nitric acid all the apparatus including cork should be made up of glass.
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Write a balanced equation for the production of nitrogen dioxide using copper.
Write the equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid.
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.
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Complete the table:
| Name of Process | Inputs | Equation | Output |
| Ammonia + Air | Nitric acid |
