Which of the following combination will produce `H_(2)` gas ?A. Fe met – InterviewSolution

1.	Which of the following combination will produce `H_(2)` gas ?A. Fe metal and conc. `HNO_(3)`B. Cu metal and conc. `HNO_(3)`C. Au metal and NaCN(aq) in the presence of airD. Zn metal and NaOH(aq)
Answer» Correct Answer - D

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