The condition required for corrosion to take place is the presence of
Oxygen and Carbon (IV) oxide
Water and Oxygen
Water and Carbon (IV) oxide and Oxygen
Water and Carbon (IV) oxide
Correct answer is B
The conditions necessary for corrosion to take place are; 1 presence of oxygen 2 moisture(water)
In an electrochemical cell, polarization is caused by
Oxygen
Hydrogen
Tetraoxosulphate(IV) acid
Chlorine
Correct answer is B
No explanation has been provided for this answer.
liberated, -\(\Delta\)H
liberated, +\(\Delta\)H
absorbed, -\(\Delta\)H
absorbed, +\(\Delta\)H
absorbed, +\(\Delta\)G
Correct answer is D
No explanation has been provided for this answer.
Which of the following classes of organic compounds undergoes rapid oxidation with bromine water?
alcohols
alkenes
carboxylic acids
esters
alkanes
Correct answer is B
No explanation has been provided for this answer.
Detergents are more advantageous than soaps in hard water districts because
on treatment with hard water they either form soluble calcium salts or do not react with calcium ion
on treatment with hard water they form soluble calcium salts
on treatment with hard water they form sodium salts
on treatment with hard water they are converted into soaps
on treatment with hard water they form more lather than soaps does
Correct answer is A
No explanation has been provided for this answer.