Which of the following gases is obtained when metals react with dilute acids?
A. Nitrogen
B. Hydrogen
C. Oxygen
D. Carbon dioxide
Answer: Option B
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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