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Which among the following statements are...

Which among the following statements are correct ?

A

Aquadig and oildig are made up of graphite

B

Graphite reacts with conc `HNO_3` acid to form mellitic acid ` C_6 (COOH)_6`

C

both `CO` and `C_3 O_2` are toxic

D

Zircon `(ZrSiO_4)` is a gemstone .

Text Solution

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The correct Answer is:
A, B, D
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