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प्रश्न
Give the name of a soluble lead salt and write the eqution for the action of heat on this salt. Write the equation for the preparation of nitric acid from potassium nitrate.
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उत्तर
Lead nitrate is soluble salt. On heating lead nitrate the following reaction occurs:
\[\ce{2Pb(NO3)2(s) ->[\Delta] 2PbO(s) + 4NO2(g) + O2(g)}\]
Preparation of nitric acid from potassium nitrate:
\[\ce{KNO3 + H2SO4 ->[200°C] KHSO4 + HNO3}\]
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संबंधित प्रश्न
Write a balanced equation for the action of heat on a mixture of copper and concentrated nitric acid.
Give two chemical equations for the following:
Nitric acid showing as acidic character.
How will you prepare the following from nitric acid?
Aqua regia
Name the Following:
Salt used in the laboratory to prepare nitric acid
Name the Following:
Two coloured nitrates.
Brown ring disappear if the test tube is disturbed.
Choose the correct answer from the option given below :
Concentrated nitric acid oxidises phosphorus to :
Fill in the blank with appropriate word.
Furning nitric acid is obtained by dissolving an excess of _______ in conc. Nitric acid
What happens when
Common salt solution is added to silver nitrate solution and NH3 solution add to it.
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.
