What is the first element that was chemically discovered by the Hanning brand?
A. Cobalt
B. Nickel
C. Hydrogen
D. Phosphorus
Answer: Option D
This Question Belongs to Chemistry GK Chapter Wise >> Non Metal And Its Compounds
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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