Which of the following statements is true of sulphur (IV) oxide?
It forms tetraoxosulphate (VI) acid with water
It is an odourless gas
It is an acid hybride
It forms white precipitate with acidified barium chloride
Correct answer is C
No explanation has been provided for this answer.
Hydrogen can be displaced from a hot alkaline solution by?
Fe
Cu
Ca
Sn
Correct answer is D
Amphoteric oxide react with both acid and alkaline and only amphoteric oxide can displace hydrogen from alkanine solution (al, pb, sn and zinc).
s orbitals
p orbitals
d orbitals
f orbitals
Correct answer is C
No explanation has been provided for this answer.
Chlorine gas is prepared in the laboratory by
adding concentrated hydrochloric acid to solid manganese (IV) oxide
aciding concentrated tetraoxosulphate (VI) acid to solid sodium chloride
dropping concentrated hydrochloric acid onto potassium tetraoxomanganate (VI) crystals
aciding concentrated tetraoxosulphate (VI) acid to hydrochloric acid
Correct answer is A
No explanation has been provided for this answer.
Which of the following is an electrolyte?
Alcohol
Sodium acetate solution
Solid potassium hydroxide
Mercury
Correct answer is B
No explanation has been provided for this answer.