Extraction of Metals - Result Question 49
####49. In the electrolysis of alumina, cryolite is added to
(a) lower the melting point of alumina
(b) increase the electrical conductivity
(c) minimise the anode effect
(d) remove impurities from alumina
Assertion and Reason
Read the following questions and answer as per the direction given below:
(a) Statement I is correct; Statement II is correct; Statement II is the correct explanation of Statement I.
(b) Statement I is correct; Statement II is correct; Statement II is not the correct explanation of Statement I.
(c) Statement I is correct; Statement II is incorrect.
(d) Statement I is incorrect; Statement II is true.
Show Answer
Solution:
- Alumina
Cryolite,
