Diamonds can be synthesized by subjecting pure carbon to:
A. Very high pressure and low temperature
B. Very low pressure and high temperature
C. Very high pressure and high temperature
D. Very low pressure and low temperature
Answer: Option C
Related Questions on Non Metal and Its Compounds
Red phosphorus is less reactive than yellow phosphorus because
A. it is red in colour
B. it is highly polymerised
C. it is insoluble in C2H5OH
D. it is hard

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