What do you understand by the terms: (i) hydrogen economy (ii) hydrogenation (iii) ‘syngas’ (iv) water-gas shift reaction (v) fuelcell?
How does H2O2 behave as a bleaching agent?
Do you expect different products in solution when aluminium (III) chloride and potassium chloride treated separately with (i) normal water (ii) acidified water, and (iii) alkaline 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 towards water.
How can saline hydrides remove traces of water from organic compounds?
What is the difference between the terms ‘hydrolysis’ and ‘hydration’?
Knowing the properties of H2O and D2O, do you think that D2O can be used for drinking purposes?
What properties of water make it useful as a solvent? What types of compound can it (i) dissolve, and (ii) hydrolyse?
Describe the usefulness of water in biosphere and biological systems.
Is demineralised or distilled water useful for drinking purposes? If not, how can it be made useful?