`0.218` gm of the acetyl derivative of a polyhydric acohol (molecular mass = 92) requires `0.168` gm of KOH for hydrolysis. Calculate the number of `(--OH)` groups in the alcohol.

0.436 g of acetyl derivative of a polyhydric alcohol(molecular mass=92) requires 0.336 g of KOH for hydrolysis. Calculate the number of hydroxyl groups in the alcohol.

A polyhydroxy alcohol having molecular weight =168. On acetylation the molecular weight increases to 294. Determine the number of -OH groups present in the alcohol.

An alcohol of mol. Wt = 92, on treatment with acetylchloride, gave a product of molw.t = 218. Number of -OH groups in the alcohol is

A polyhydric alcohol having moleculer weight 180 on acetylation gives an acetyl derivatives having moleculer weight 390. No of-OH group in it.

In Zeisel's method for the detrmination of methoxyl groups, a sample of 2.68 gm of a compound (A) gave 14.08 gm of AgI. If the molecular weight of compound (A) is 134, the number of (--OH_)) group(s) in the compound (A) is:

In Zeisel's method for the detrmination of methoxyl groups, a sample of 2.68 gm of a compound (A) gave 14.08 gm of AgI. If the molecular weight of compound (A) is 134, the number of (--OH_(3)) group(s) in the compound (A) is: