Which one of the following pairs of substances will not produce hydrogen when reacted together?
A. Copper and conc. nitric acid
B. Ethanol and metallic sodium
C. Magnesium and steam
D. Phenol and metallic sodium
Answer:C
Which one of the following pairs of substances will not produce hydrogen when reacted together?
A. Copper and conc. nitric acid B. Ethanol and metallic sodium C. Magnesium and steam D. Phenol and metallic sodium