Which is the best reagent to convert cyclohexanol into cyclohexene.(A)

1.	Which is the best reagent to convert cyclohexanol into cyclohexene.(A) conc. HCI[JEE-2005, 3/nCl2(B) conc. HBr(C) conc. H3PO4(D) HCI + Z
Answer» The correct answer is OPTION "C": Conc. H3PO4 In the presence of strong acid, 85% Phosphoric acid and under the presence of heat, cyclohexanol gets converted into cyclohexene Plz mention order of acidic strength among given options in this question

Which is the best reagent to convert cyclohexanol into cyclohexene.(A) conc. HCI[JEE-2005, 3/nCl2(B) conc. HBr(C) conc. H3PO4(D) HCI + Z

Answer»

The correct answer is OPTION "C": Conc. H3PO4

In the presence of strong acid, 85% Phosphoric acid and under the presence of heat, cyclohexanol gets converted into cyclohexene

Plz mention order of acidic strength among given options in this question