A high value of dipole moment and dielectric constants (78.39 C2 /Nm2 ) makes water a universal solvent. Water is able to dissolve most covalent and ionic compounds. Owing to the ion-dipole interaction, Ionic compounds dissolve in water, whereas covalent compounds form hydrogen bonding and dissolve in water. Water can hydrolyze
→ metallic and non-metallic oxides
→ nitrides
→ phosphides
→ carbides
→ hydrides
and various other salts. During hydrolysis, H+ and \( OH^{–}\) ions of water interact with the reacting molecule.
Certain reactions are:
\( CaC_{2}+H_{2}O\rightarrow C_{2}H_{2}+Ca(OH)_{2}CaO+H_{2}O\)
\( \rightarrow Ca(OH)_{2}NaH+H_2O\)
\( \rightarrow NaOH+H_{2} \)
Answered by Pragya Singh | 1 year agoWhat do you understand by the terms :
(i) Hydrogen economy
(ii) Hydrogenation
(iii) ‘syngas’
(iv) Water-gas shift reaction
(v) Fuel cell?
Do you expect different products in solution when aluminium (III) chloride and potassium chloride treated separately with
(i) alkaline water
(ii) acidified water, and
(iii) normal water. Write equations wherever necessary.
What do you expect the nature of hydrides is, if formed by elements of atomic numbers 15, 19, 23 and 44 with dihydrogen? Compare their behaviour with water.
How can saline hydrides remove traces of water from organic compounds?