Read each description given below and say whether it fits for ethanol or ethanoic acid.

i) It is a clear liquid with a burning taste.

ii) It is used to preserve biological specimens in laboratories.

iii) It is used to preserve food and fruit juices.

iv) On cooling, it is frozen to form ice flakes which look like a glacier.

Rewrite the following choosing the correct word from each pair given in brackets:

The hydrocarbons containing at least one carbon to carbon _______________ (double/triple) bond are called __________(alkenes/alkynes).They have the general formula C_nH_2n.These were previously called ______________(olefins/paraffins). When this compound is treated with ____________(bromine/lime) water, decolourisation occurs because it is _____________(saturated/unsaturated).

Identify the compounds using the clues given below:

i) This is a dark coloured syrupy liquid containing 30% of sucrose.

ii) During manufacture of ethanol this is added as food for yeast.

iii)This enzyme converts sucrose into glucose and fructose.

iv) This compound contains 95.5% ethanol and 4.5% water.

v) This compound contains 100% pure alcohol.

Match these words /sentences with appropriate statements given below:

(methanol, fermentation, catenation, homologous series, hydrogen gas)

i) The ability of carbon to form large number of compounds through self-linking property.

ii) Alcohols react with sodium to give this element.

iii) This series helps in giving knowledge and enables systematic study of members.

iv) Formation of simple molecules from complex organic compounds using enzymes.

v) Unlike ethanol, the intake of this compound in very small quantities can cause death.

Fill the blanks in the given table using suitable formulae.