MCQ
Which one of the following has the highest electronegativity
- A$Br$
- ✓$Cl$
- C$P$
- D$Si$
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$C{H_2} = C{H_2}\xrightarrow{{HBr}}X\xrightarrow{{{\text{Hydrolysis}}}}Y\mathop {\xrightarrow{{N{a_2}C{O_3}}}}\limits_{{I_2}{\text{ excess}}} Z$
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