1Which one is the correct formula of glycerol: \( \mathrm{C_3H_6(OH)_2} \), \( \mathrm{C_3H_5(OH)_2} \), \( \mathrm{C_3H_4(OH)_4} \) or \( \mathrm{C_3H_5(OH)_3} \)?
2Which of the following is the IUPAC name of the alcohol used as a beverage: methanol, ethanol, propanol or butanol?
3Which of the following is used to protect skin from dryness: methyl alcohol, ethyl alcohol, glycerol or glucose?
4Which hydrocarbon is used to prepare glycerol: methane, ethane, propane or glucose?
5Write the differences between monohydric alcohol and dihydric alcohol.
6Give reason: Glycerol is called a trihydric alcohol.
7What is alcohol? Write its types on the basis of the hydroxyl group. Also write their examples along with their molecular formula and structural formula.
8Write the molecular formula, condensed formula and structural formula of ethyl alcohol and glycerol.
9Name the alcohol used for these purposes: to make formaldehyde, in a thermometer, as an antiseptic, and to prepare alcoholic beverages.
10Which compound will form if one of the hydrogen atoms of ethane, \( \mathrm{C_2H_6} \), is replaced with an -OH group?
11Write the molecular formula of glycerol, ethanol and methyl alcohol.
12Write the name and structural formula of the alcohol used in spirit lamps.
13Name the compound formed by the replacement of three hydrogen atoms with three hydroxyl groups (-OH) from propane. Also write its IUPAC name along with its structural formula. Write its three uses.
14Rama has a problem of dry skin on her hands, feet and face. Which compound can be used to solve her problem? Write the IUPAC name and the structural formula of that compound.
15Why is the -OH group called the functional group of alcohols?
16Use the general formula \( \mathrm{C_nH_{2n+1}OH} \) to find the molecular formula of the monohydric alcohol with four carbon atoms.
17Why is glycerol used to keep fruits and tobacco from drying out?
18Write two differences between glycol and glycerol.