MCQ
Which of following has no unit ?
- ✓$EN$
- B$EA$
- C$IP$
- D$AR$
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In the chemical reaction
$Mn{O_2} + 4HCl \to MnC{l_2} + 2{H_2}O + C{l_2}$
$(1)$ Manganese ion is oxidised
$(2)$ Manganese ion is reduced
$(3)$ Chloride ion is oxidised
$(4)$Chloride ion is reduced.
Which of these statements are correct
$n$ $l$ $m$ $s$