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11th CBSE
IMPORTANT
Earn 100

The crystalline form of borax has

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Important Questions on Some p-Block Elements

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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
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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?
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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?

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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 84
Substances which readily undergo hydrolysis are 
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 85

With respect to graphite and diamond, which of the statement(s) given is (are) correct?

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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 96

The number of B-O-B bonds in borax is-

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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 11 - Some p-Block Elements>Competition Focus>Q 97
Three moles of B2H6 are completely reacted with methanol. The number of moles of boron containing product formed is