Question

Total number of compound (ingluding stereoisomers) having molecular formula $C_5{H}_{12}O$ which can give blue colour in victor mayer test, is:

Answer 1

Alcohols exhibits different colour when undergo victor mayer test.
$1^o\to \text{Red}$
$2^o\to \text{Blue}$
$3^o\to \text{Colourless}$

Possible isomers of alcohol having molecular formual $C_5{H}_{12}O$ are:


Hence total of five isomers of alcohol are $2^o$ and can respond positive to vitor mayer test by exhibiting blue colour.