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प्रश्न
For the preparation of the following salts - give a balanced equation in the following case.
Lead [II] chloride from lead carbonate [give two equations]
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उत्तर
\[\ce{\underset{(Insoluble salt)}{\underset{Lead carbonate}{PbCO3}} + 2HNO3 -> \underset{(Soluble salt)}{\underset{Lead nitrate}{Pb(NO3)2}} + H2O + CO2}\]
\[\ce{\underset{Lead nitrate}{Pb(NO3)2} + 2HCl -> \underset{Lead chloride}{PbCl2} + 2HNO3}\]
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संबंधित प्रश्न
Write a balanced chemical equation for the following:
Preparation of methane from iodomethane.
Distinguish between the given pair of compounds using the test given within bracket:
A lead salt and a zinc salt (using excess ammonium hydroxide)
How is the following salt prepared:
Copper (II) sulphate from copper (II) oxide?
The following is a list of methods for the preparation of salts.
A - direct combination of two elements
B - reaction of a dilute acid with a metal.
C - reaction of a dilute acid with an insoluble base.
D - titration of a dilute acid with a solution of soluble base.
E - reaction of two solutions of salts to form a precipitate.
Choose from the above list A to E, the best method for preparing the following salts by giving a suitable equation in each case:
- Anhydrous ferric chloride,
- Lead chloride,
- Sodium sulphate,
- Copper sulphate.
State how would you prepare copper (II) oxide from
copper sulphate
Choosing the correct words given in brackets, complete the sentence given below: Copper sulphate from copper.
Choosing the correct words given in brackets, complete the sentence given below: Sodium sulphate from sodium carbonate.
Which of the following methods, (a), (b), (c), (d) or (e) is generally used for preparing the chlorides listed below from (i) to (v). Answer by writing down the chloride and the letter pertaining to the corresponding method. Each letter is to be used only once.
(a) Action of an acid on a metal.
(b) Action of an acid on an oxide or carbonate.
(c) Direct combination.
(d) Neutralization of an alkali by an acid.
(e) Precipitation (double decomposition).
(i) copper(II) chloride.
(ii) iron(II) chloride.
(iii) iron(IIl) chloride.
(iv) lead (II) chloride.
(v) sodium chloride.
From the list given below, which one is:
[SO2, SiO2, Al2O3, CO, MgO, Na2O]
- A covalent oxide of a metalloid.
- An oxide which when dissolved in water form acid.
- A basic oxide.
- An amphoteric oxide.
Select the word/s given which are required to correctly complete the blanks.
When solution M and O are mixed together, the products will be ______ and ______.
