MCQ
Which element has the greatest tendency to loose electrons
- A$F$
- B$S$
- ✓$Fe$
- D$Be$
So it has less metallic character than $Fe$.
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$(I)$ The principal reducing product is $NO$ gas
$(II)$ $Cu$ metal is oxidised to $Cu^{2+}$ ( aq.) ion which is blue in colour.
$(III)$ $NO$ is paramagnetic and has one unpaired electron in antibonding molecular orbital
$(IV)$ $NO$ reacts with $O_2$ to produce $NO_2$ which is linear in shape
Choose the correct statements

$(I)$ Acid chloride $(II)$ Aldehyde
$(III)$ Ketone $(IV)$ Ester
Select the correct answer from the codes given below :


$(A)$ Reduction of $HCHO$
$(B)$ Oxidation of $HCHO$
$(C)$ Reduction of $PhCHO$
$(D)$ Oxidation of $Ph-CHO$