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प्रश्न
Give one example : A base which is not an alkali.
उत्तर
Ferric hydroxide [Fe (OH)3].
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संबंधित प्रश्न
Define the term neutralization, Give a reaction, mentioning clearly acid and base used in the reaction.
Name the ions furnished by : an acid
Give one example : A hydroxide which is highly soluble in water.
Give one example : A hydrogen containing compound which is not an acid.
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Why is the direct addition of dilute sulphuric acid to lead carbonate an impractical method of preparing lead sulphate?
Choose the correct answer:
The salt which in solution gives a pale precipitate with sodium hydroxide solution and a white precipitate with barium chloride solution is:
Identify the anion present of the following compound:
A salt M on treatment with concentrated sulphuric acid produces a gas which fumes in moist air and gives dense fumes with ammonia.
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 of preparing the following salt by giving a suitable equation in the following case:
Lead chloride.
For each of the salt: A, B, C and D, suggest a suitable method of its preparation.
B is an insoluble salt.
Making use only of substances chosen from those given below:
(Dilute sulphuric acid, sodium carbonate, Zinc, sodium sulphite, Lead, calcium carbonate)
Give the equation for the reaction by which you could obtain zinc carbonate (two steps required).
