MEDIUM
11th Odisha Board
IMPORTANT
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How is orthoboric acid prepared?

Important Questions on Group-13 Elements

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?
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 3
What is borax? Give two uses of borax.
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 4
Write the preparation of orthoboric acid from borax.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 5
To which block of the periodic table B and Al belong? Explain why?
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 6
What happens when aluminium hydroxide is treated with sodium hydroxide solution?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 7
Name two ores of aluminium.
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 8
Complete the equation: NaAlO2+2H2O→
MEDIUM
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Chemistry Volume-1>Chapter 14 - Group-13 Elements>QUESTIONS>Q 9

Write the balanced equation for the following:

On heating, borax first swells forming anhydrous borax and then changes to metaborates and boron trioxide.