CHEMISTRY [1 Mark Question Answer]

The example are sugar in water ,ice ,air ,rock ,wood etc. yes they are mixtures.
Explanation: We can separate mixtures by physical methods like distillation, filteration etc.

Air is a mixture because :-
more than two gaseous components are mixed in an indefinite proportion.
the components are not mixed chemically but interact with intermolecular forces.
it does not have any specific chemical properties as each component differs chemically.

Take a small amount of mixture of iron and sulphur and roll a bar magnet in it. It is noticed that grey particles of iron cling to the magnet and yellow particles of sulphur left behind.
Now roll the magnet in the powdered iron sulphide compound. It is noticed that no iron particles cling to the magnet.
Thus, we can conclude that, constituents of a mixture can be separated by physical means, but the constituents of a compound cannot be separated by physical means

A homogeneous mixture is a gaseous, liquid or solid mixture that has the same proportions of its components throughout a given sample. It is uniform in composition throughout. There is only one phase of matter observed in a homogeneous mixture.

A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture. Example- Vegetable soup is a heterogeneous mixture.

Three gaseous elements are :-
Hydrogen as hydrogen gas (H₂)
Oxygen as oxygen gas (O₂)
Fluorine as fluorine gas (F₂)

Four mixtures from daily life are Soft-drinks, Cooking Gas, Cup of Coffee and Petrol.

Four compound from daily life are Detergent, Toothpaste, Salt and Vineger.

compound:- Distilled water, Wax, Common salt
Mixture:-Ginger and garlic paste, Petrol , Tincture of iodine