Question

Name the reagents used in the following reactions
Oxidation of a primary alcohol to carboxylic acid.

Oxidation of a primary alcohol to aldehyde

Bromination of phenol to 2, 4, 6 - tribromophenol

Benzyl alcohol to benzoic acid

Dehydration of propan-2-ol to propene

Butan-2-one to butan-2-ol

Answer 1

Acidified $K_{2}C{r}_2{O}_7$ or neutral/acidic/alkaline $KMn{O}_4$

Pyridine chlorochromate (PCC)$\left(C_5{H}_5{N}^{+}HClCr{O}_3^{-}\right)$ in $C{H}_{2}C{l}_2$

Bromine water $\left(B{r}_2/H_{2}O\right)$

Alkaline $KMn{O}_4$ or acidified $KMn{O}_4$

$85\%H_{3}P{O}_4$ at 440 K

$LiAl{H}_4$ or $NaB{H}_4$