Question
Read the passage below and answer the following questions:
Electrolytic reduction is a type of electrolysis in which an electric current is passed through a molten or dissolved ionic substance, generating chemical reactions between the electrodes and the decomposition of the components. Electrolytic reduction is used to produce certain metals such as K , Na, and Al . The electrolytic reduction can be made in a molten state only. Alumina melts at higher temperature, so it is not easy to collect it. This difficulty was removed by adding cryolite to alumina as a solvent to obtain the globules of aluminium.
Q.1. Aluminium melts at what temperature?
(a) $1280^{\circ} C$ (b) $2050^{\circ} C$ (c) $2040^{\circ} C$ (d) $1850^{\circ} C$
Q.2. Which scientist revolutionised the aluminium industry?
(a) Heroult (b) Baeyer (c) Hoope (d) Hall
Electrolytic reduction is a type of electrolysis in which an electric current is passed through a molten or dissolved ionic substance, generating chemical reactions between the electrodes and the decomposition of the components. Electrolytic reduction is used to produce certain metals such as K , Na, and Al . The electrolytic reduction can be made in a molten state only. Alumina melts at higher temperature, so it is not easy to collect it. This difficulty was removed by adding cryolite to alumina as a solvent to obtain the globules of aluminium.
Q.1. Aluminium melts at what temperature?
(a) $1280^{\circ} C$ (b) $2050^{\circ} C$ (c) $2040^{\circ} C$ (d) $1850^{\circ} C$
Q.2. Which scientist revolutionised the aluminium industry?
(a) Heroult (b) Baeyer (c) Hoope (d) Hall