Question

Classify the following into homogeneous and heterogeneous mixtures: a) Ice b) Soil c) Wood d) Air
Q.2 Name the type of mixture formed by mixing sulphur and carbon dioxide.
Q.3 Justify the statement that rusting of iron is corrosion and it is a chemical change.
Q.4 Name the process used for separation: a) Miscible liquids b) Immiscible liquids c) Butter from milk d) Separation of colours in dyes e) Camphor from sand and salt
Q.5 Name the apparatus by which mixture of oil and water can be separated.
Q.6 What type of solution is an alloy?
Q.7 Which component of mixture (iron & sulphur) reacts with dil .hydrochloric acid and gives hydrogen gas?
Q.8 Crystallization is a better technique than simple evaporation. Give one reason to justify your answer.
it 's argeat ​

Answer 1

Answer:

Homogeneous → soda-water, wood, air, alcohol and water mixture, sugar and water mixture, salt and water mixture, cough syrup.

Heterogeneous → soil, petrol and water mixture, chalk and water mixture, sand and water mixture, pumice stone, smoke, gun powder.