DISTINCTION ( CHEMICAL TEST ) TOPIC :- ALCOHOL CLASS 12 {ONE MARKS}
(CLASS IX, X , XI , XII , NEET and JEE)
1 PRIMARY , SECONDARY AND TERTIARY ALCOHOL :-
(A) LUCAS TEST :-- In this test , an alcohol is treated with lucas reagent ( conc. HCl and anhydrous ZnCl2) the alcohol get converted into alkyl halide . The alkyl halide insoluble in water and its appeared in the form cloudiness solution . the time required different for different alcohols for appearance of cloudiness
(i) if turbidity (cloudiness solution) appear immediately , the alcohol tertiary
(ii)if turbidity (cloudiness solution) appear with in 5 minutes , the alcohol secondary
(iii) if turbidity (cloudiness solution) appear only upon heating , the alcohol primary
2 VICTOR MEYERS TEST
in this test following step involves
(i) The ROH treated with red P and Iodine resulting formation of RI
(ii)The RI treated with AgNO2 to convert into nitro alkane
(iii) The nitro alkane is finally react with nitrous acid and the resulting solution is made alkaline
if
