For the statement "A mixture of alcohol and water can be separated by chemical methods" which among the following option is correct
STATEMENT 1: Elements cannot be broken down into simpler substances.
STATEMENT 2: Mixtures are homogenous and heterogenous in nature.
STATEMENT 3: Constituents of a compound can be separated by chemical means.
STATEMENT 4: A mixture has a variable composition.
State whether the following statements are true or false.
(a) Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
(b) Salt and water can be recovered from an aqueous salt solution by the process of evaporation.
Few properties are mentioned below. Specify the property as mixture or compounds:
STATEMENT 1: The constituents can be separated easily by physical means.
STATEMENT 2: Has a variable composition.
STATEMENT 3: The composition is constant.
STATEMENT 4: Shows entirely different properties from those of the constituents.
Which of the following statements about a compound is incorrect ?
(a) A molecule of a compound has atoms of different elements
(b) A compound cannot be separated into its constituent elements by physical methods of separation
(c) A compound retains the physical properties of its constituent elements
(d) The ratio of atoms of different elements in a compound is fixed