Advertisements
Advertisements
Question
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Advertisements
Solution
Nitric acid is prepared by the reaction of conc. sulphuric acid with potassium or sodium nitrate.
\[\ce{KNO3 + H2SO4 ->[<200°C] KHSO4 + HNO3}\]
\[\ce{NaNO3 + conc{.} H2SO4 -> NaHSO4 + 2HNO3}\]
APPEARS IN
RELATED QUESTIONS
Write a balanced equation for the action of heat on a mixture of copper and concentrated nitric acid.
Ammonia is used in the Ostwald process.
What is the ratio of ammonia and air taken in this process?
Give two chemical equations for the following:
Reactions of nitric acid with non-metals.
Name the Following:
Product obtained by heating concentrated nitric acid.
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?
Scrap zinc is heated with conc. HNO3?
What happens when (Given balanced equation):
Nitric acid is added to Kl (aq)?
Complete and balance the following equation :
C + HNO3 → ___________
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.
