Advertisements
Advertisements
Question
What do you understand by the term ‘auto protolysis of water’ ? What is its significance?
Solution
Autoprotolysis is a reaction in which two same molecules react to give ions with proton transfer. Water undergoes autoproteolysis, i.e., a proton from one molecule is transferred to another molecule.
\[\ce{H2O (l) + H2O (l) ⇌ H3O+ (aq) + OH- (aq)}\]
On account of autoprotolysis, water is amphoteric in nature.
APPEARS IN
RELATED QUESTIONS
What do you understand by electron-rich compounds of hydrogen? Provide justification with a suitable example.
What characteristics do you expect from an electron-deficient hydride with respect to its structure and chemical reactions?
Do you expect the carbon hydrides of the type (CnH2n + 2) to act as ‘Lewis’ acid or base? Justify your answer.
Arrange the following:
LiH, NaH and CsH in order of increasing ionic character.
What do you understand by electron-deficient? Provide justification with a suitable example.
What do you understand by electron-precise? Provide justification with a suitable example.
Name the classes of hydrides to which \[\ce{H2O, B2H6}\] and \[\ce{NaH}\] belong.
Molecular hydrides are classified as electron-deficient, electron precise and electron-rich compounds. Explain each type with two examples.
Hydrogen generally forms covalent compounds. Give reason.
An ionic hydride of an alkali metal has significant covalent character and is almost unreactive towards oxygen and chlorine. This is used in the synthesis of other useful hydrides. Write the formula of this hydride. Write its reaction with \[\ce{Al2Cl6}\].
