The overall reaction taking place at anode during electrolysis of fused sodium chloride using suitable electrode is
oxidation of chloride
reduction of sodium ions
reduction of chlorine
oxidation of sodium atoms
Which of the following compounds has highest boiling point?
Propan-1-ol
n-butane
Chloroethane
Propanal
Which oxoacid of sulphur contains S-S bond in its structure?
Disulphurous acid
Disulphuric acid
Perdisulphuric acid
Hydrosulphurous acid
A.
Disulphurous acid
Disulphurous acid contains one S-S bond in its structure.
Which among the following alloys is used in making instruments for electrical measurements?
Stainless steel
Manganin
Spiegeleisen
Duralumin
Which among the following solutions is not used in determination of the cell constant?
10-2 M KCl
10-1 M KCl
1 M KCl
Saturated KCl
Which halogen forms an oxyacid that contains the halogen atom in tripositive oxidation state?
Fluorine
Chlorine
Bromine
Iodine
Name the metal that is purified by placing the impure metal on sloping hearth of a reverberatory furnace and heating that above its melting point in the absence of air.
Mercury
Gallium
Zirconium
Copper