MCQ
Mass of atom expressed in atomic mass unit is :
- ✓Atomic mass
- BMolecular mass
- CAtomic number
- DNone of the above
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$(I)$ $B + ANO_3 \to B NO_3 + A$
$(II)$ $A + HCl \to ACl + \frac{1}{2}{H_2}$
$(III)$ $D + ECl \to DCl + E$
$(IV)$ $D + HNO_3 \to H_2$ gas is not evolved
