HARD
11th CBSE
IMPORTANT
Earn 100

The option(s) with only amphoteric oxides is(are)

50% studentsanswered this correctly

Important Questions on Some p-Block Elements

HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 76
Among the following, the correct statement(s) is (are)
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 77
BF3 is
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 78

Select the most appropriate statement.

In BF3

HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 79
The crystalline form of borax has
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 80
Boric acid is used in carom boards for smooth gliding of pawns because
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 81
The correct statement(s) for orthoboric acid is/are
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 82
Which of the following species are not known?
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 83

Which of the following are used as catalyst in Friedel-Crafts reaction?