Some P Block Elements

Chemistry
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Tincal contains mainly :

A
B
C
D
Medium
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Which element has the highest valency with respect to oxygen?

A
Sodium
B
Aluminium
C
Chlorine
D
Sulphur
Medium
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Non-metals present in borax are:

A
B
C
both and
D
Medium
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Silicon is an important constituent of:

A
chlorophyll
B
haemoglobin
C
rocks
D
amalgams
Medium
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The element whose atomic volume is least is

A
Boron
B
Aluminum
C
Gallium
D
Thallium
Medium
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