The reagent which easily reacts with ethanol and propanol is

Which of the following statements is correct regarding the rate of dehydration in alcohols?

Which of the following is the correct order of boiling points for $(1^o)$ primary,$(2^o)$ secondary,and $(3^o)$ tertiary alcohols?

What is the order of reactivity of the following alcohols with halogen acids?
$(1) \ CH_3CH_2CH_2OH$
$(2) \ CH_3CH_2CH(CH_3)OH$
$(3) \ CH_3CH_2C(CH_3)_2OH$

$CH \equiv CH$ $\xrightarrow{\text{Red hot Fe tube}} A$ $\xrightarrow{CH_3COCl / AlCl_3} B$ $\xrightarrow{(1) LiAlH_4 / (2) H_3O^\oplus} C$
$C$ will be

The reaction sequence is given as:
$1-methylcyclohexene$ $\xrightarrow[alkaline \ KMnO_4]{cold} A$ $\xrightarrow[AcOH]{CrO_3} B$
Identify $A$ and $B$.