Advertisements
Advertisements
प्रश्न
Write the equation for the reaction of dilute nitric acid with copper.
Advertisements
उत्तर
\[\ce{3Cu + \underset{(Nitric oxide)}{8HNO3} -> 3Cu(NO3)2 + 4H2O + 2NO}\]
APPEARS IN
संबंधित प्रश्न
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
Ammonia is used in the Ostwald process.
Name the oxidising agent used in this process.
How will you prepare the following from nitric acid?
Sodium nitrate
Name the Following:
Salt used in the laboratory to prepare nitric acid
Explain with the help of a balanced equation, the brown ring test for nitric acid.
Write the balanced equation for the equation preparation of nitric acid from potassium nitrate.
Identify the gas evolved when sulphur is treated with concentrated nitric acid.
What happens when
Common salt solution is added to silver nitrate solution and NH3 solution add to it.
Give one test to distinguish between the following pair of chemicals.
Zinc nitrate solution and calcium nitrate solution
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.
