Show how are the following alcohol prepared by the reaction of a suitable Grignard reagent on methanal?

 

Show how is the following alcohol prepared by the reaction of a suitable Grignard reagent on methanal ?

Write the structure of the product of following reaction:

Write structures of the products of the following reaction:

Give structures of the products you would expect when the following alcohol reacts with (a) $\mathrm{HCl}-{\mathrm{ZnCl}}_2$ (b) $\mathrm{HBr}$and (c) ${\mathrm{SOCl}}_2$

$2-\mathrm{Methylbutan}-2-\mathrm{ol}$

Predict the major product of acid catalysed dehydration of butan-1-ol.