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प्रश्न
Draw the structure of the stable positive ion formed when an acid dissolves in water.
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उत्तर
The stable positive ion formed when an acid dissolves in water is hydronium ion.
The structure of hydronium ion (H3O+) is as follows:
\[\ce{HCl + H2O -> H2O+ + Cl-}\]
\[\begin{array}{cc}
\ce{H - \overset{\bullet\bullet}{\mathbf{O}} - H}\\
|\\
\phantom{.}\ce{H}\
\end{array}\]
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संबंधित प्रश्न
Explain the formation of hydronium ion.
Define in term of ionization an alkali?
Name the ions furnished by an acid.
Name a salt prepared by direct combination. Write an equation for the reaction that takes place in preparing the salt you have named.
Name the ions furnished by bases in solution.
From the list given below, select the word(s) required to correctly complete the blanks (i) to (v) in the following passage:
Ammonia, Ammonium, Carbonate, Carbon dioxide, Hydrogen, Hydronium, Hydroxide, Precipitate, Salt, Water.
A solution ‘X’ turns blue litmus red so it must contain (i) ______ ions; another solution ‘Y’ turns red litmus blue and therefore must contain (ii) ______ ions. When solutions X and Y are mixed together, the products will be a (iii) ______ and (iv) ______. If a piece of magnesium was put into solution X, (v) ______ gas would be evolved.
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:
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.
A black coloured solid which on reaction with dilute sulphuric acid forms a blue coloured solution is ______.
State your observation:
Zinc granule is added to copper sulphate solution.
