Write the formula of cryolite.

Important Questions on Group-13 Elements

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 6

Complete the equation: ${\mathrm{Al}}_2{\mathrm{O}}_3+\mathrm{NaOH}\to \mathrm{\_\_\_\_}+{\mathrm{H}}_2\mathrm{O}$.

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 7

Between boron and aluminium, which metal has a higher value of atomic radius?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 8

What is borax bead test?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 10

Which one of the following is an ore of aluminium?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 11

What happens when orthoboric acid is heated?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 12

Write the formula of orthoboric acid.

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 1

How is orthoboric acid prepared?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 2

What happens when orthoboric acid is heated?