Electroplating
Arc-welding
Reducing and mixture of their metallic oxide
Cooling a molten mixture of the metals
Correct answer is D
No explanation has been provided for this answer.
Aluminium hydroxide is used in the dyeing industry as a
Salt
Dye
Mordant
Dispersant
Correct answer is C
No explanation has been provided for this answer.
The electrons in both the 2s and 2p orbitals are equivalent
The electrons in all the orbitals of carbon are equivalent
The 2s and 2p atomic orbitals hybridize
All the atomic orbitals of carbon hybridize
Correct answer is C
No explanation has been provided for this answer.
Sulphur (IV) oxide bleaches by
Reduction
Oxidation
Hydration
Adsorption
Correct answer is A
No explanation has been provided for this answer.
When steam is passed over red-hot carbon, the substances produced are
Hydrogen and trioxocarbonate (IV) acid
Hydrogen, oxygen and carbon (IV) oxide
Hydrogen and carbon (II) oxide
Hydrogen and carbon (IV) oxide
Correct answer is C
No explanation has been provided for this answer.