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प्रश्न
Fill in the blank from the choices given in bracket.
When a metallic oxide is dissolved in water, the solution formed has a high concentration of ___________ ions. (H+,H3O+,OH-)
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उत्तर
When a metallic oxide is dissolved in water, the solution formed has a high concentration of OH⁻ ions.
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संबंधित प्रश्न
Define in term of ionization an acid.
Name the ions furnished by an acid.
Name the ions furnished by bases in solution.
Name the ions furnished by : an acid
Give one example : A basic oxide which is insoluble in water.
Give one example : A weak mineral acid.
The preparation of lead sulphate from lead carbonate is a two step process (lead sulphate cannot be prepared by adding dilute sulphuric acid to lead carbonate)
Why is the direct addition of dilute sulphuric acid to lead carbonate an impractical method of preparing lead sulphate?
State the term defined by the following sentence:
The insoluble solid formed when two solutions are mixed together.
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 ______.
