MEDIUM
11th CBSE
IMPORTANT
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Boron forms only compounds while aluminium forms both ionic and covalent compounds.

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Important Questions on Some p-Block Elements

MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 6
Aluminium is_____in nature and dissolves in both dilute hydrochloric acid and sodium hydroxide evolving hydrogen gas.
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 7
Boron compounds act as Lewis acids because of their _____ (electron rich/ electron deficient) nature.
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 8
AlCl3 is a _____ (stronger/ weaker) Lewis acid than BCl3.
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 9
When treated with conc. HNO3 aluminum is rendered passive due to the formation of a protective layer of its _____ on the surface of the metal. (oxide/nitride)
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 10
Orthoboric acid on strong heating gives _____. (Boron monoxide/ Boron trioxide)
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 11
The molecular formula of inorganic benzene is B3N3H6 and it is obtained by heating the adduct of B2H6 with _____. (Write the chemical name)
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 12
The two types of bonds present in diborane are 2c-2e and_____.
EASY
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>TEST YOUR GRIP>Q 13
An alloy of copper and aluminium which has beautiful golden yellow color is called _____. (Aluminium bronze/Wurtzite)