Which of the following processes takes place during the production of margarine from vegetable oils?
Esterification
Hydrolysis
Hydrogenation
Saponification
Correct answer is C
No explanation has been provided for this answer.
When concentrated sodium chloride solution is electrolysed using inert electrodes the products are?
oxygen and hydrogen
hydrogen and oxygen
sodium and oxygen
soduim hydroxide, hydrogen and chlorine
Correct answer is D
When concentrated NaCl solution undergoes electrolysis, sodium hydroxide and hydrogen are produced at the cathode while chlorine is produced at the anode.
smaller mass
lower electrical charge
greater stability in solution
stronger tendency to accept electrons
Correct answer is D
No explanation has been provided for this answer.
-2 to + 3
- 2 to + 6
+ 6 to + 3
+ 7 to + 6
Correct answer is C
No explanation has been provided for this answer.
A visible change is observed when a strip of iron is placed in an aqueous solution of
FeSO4
ZnSO4
CuSO4
MgSO4
Correct answer is C
No explanation has been provided for this answer.