(Cu) and (HNO_{3}) are not suitable for preparing hydrogen gas because of their
-
A.
reactivity and oxidation respectively -
B.
conductivity and corrosiveness respectively -
C.
melting point and reduction respectively -
D.
electronegativity and solubility respectively
Correct Answer: Option A
Explanation
Copper is not active enough to replace hydrogen in an acid. Also, nitric acid is a strong oxidizing agent which quickly oxidises hygrogen to water.