MEDIUM
JEE Advanced
IMPORTANT
Earn 100

How is aluminium chloride prepared ? What is its structure when anhydrous and when dissolved in water? Give an example of the use of AlCl3 as a Friedel-Crafts catalyst.

Important Questions on The Group 13 Elements

HARD
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 2
What is the main source of boron? Outline the steps in the extraction of boron.
EASY
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 3
Draw the structure of the B12 unit found in the solid structure of boron. What is this shape called?
MEDIUM
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 4
Work out the shape of the BO33- ion and explain why it has this structure.
HARD
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 5
Orthoboric acid may be written as H3BO3 or B(OH)3. How does it ionize in water and which way of writing the formula is the most helpful? How strong an acid is it? Why does glycerol enhance its acidic properties? Write a balanced equation for a neutralization reaction with boric acid.
HARD
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 6
Give an account of isopoly-acids with special reference to borates.
MEDIUM
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 19
How would you prepare LiH and LiAlH4? What are they used for?
HARD
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 20
Give two different preparations for Et3Al and describe its use as a catalyst for polymerizing C2H4.
HARD
JEE Advanced
IMPORTANT
Concise Inorganic Chemistry>Chapter 11 - The Group 13 Elements>Exercise 1>Q 21
Compare and contrast the chemistry of boron and aluminium.