SATHEE: P-Block Elements Ques 31

P-Block Elements Ques 31

Question: In the electrolytic extraction of aluminium, cryolite is used

[NCERT 1981; CPMT 1989; RPMT 2000; MP PMT 2000, 02]

Options:

A) To obtain more aluminium

B) To decrease temperature to dissolve bauxite

C) To protect the anode

D) As reducing agent

Show Answer

Answer:

Correct Answer: B

Solution:

Cryolite $N a_{3} A l F_{6}$ is added (1) To decrease the melting temp from $2323 K$ to $1140 K$ (2) To increase the electrical conductivity of solution

P-Block Elements Ques 31

Question: In the electrolytic extraction of aluminium, cryolite is used

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

P-Block Elements Ques 31

Question: In the electrolytic extraction of aluminium, cryolite is used

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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