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General Principles and processes of Isolation of Elements
hard
‘Lapis-Lazuli’ is a blue coloured precious stone. It is mineral of the class
A
Sodium-alumino silicate
B
Zinc cobaltate
C
Basic copper carbonate
D
Prussian blue
(AIIMS-1980)
Solution
(a)Lapis lazuli is the aluminium silicate present in earth rocks as blue stone.
Standard 12
Chemistry
Similar Questions
Match List $I$ with List $II$.
| List $I$ | List $II$ |
| $A$ Reverberatory furnace | $I$ Pig Iron |
| $B$ Electrolytic cell | $II$ Aluminum |
| $C$ Blast furnace | $III$ Silicon |
| $D$ Zone Refining furnace | $IV$ Copper |
