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Class 12Chemistryp-Block Elements (Class 12)Nitrogen family
Difficult

‘Lapis-Lazuli’ is a blue-coloured precious stone. It is a mineral of the class:

AIIMS 1980All AIIMS
  • A
    Sodium-alumino silicate
  • B
    Zinc cobaltate
  • C
    Basic copper carbonate
  • D
    Prussian blue
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

p-Block Elements (Class 12)

Subtopic

Nitrogen family

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AIIMS 1980 PaperAll AIIMS years →

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