1 What is a homogeneous mixture? A A mixture where the components can be seen B A mixture with uniform composition throughout C A mixture with non-uniform composition D A mixture that separates on standing
2 What is a solution? A A homogeneous mixture of two or more substances B A heterogeneous mixture C A pure substance D A colloid
4 Which of the following shows the Tyndall effect? A Sugar solution B Milk C Salt solution D Pure water
5 What is the substance that dissolves in a solution called? A Solvent B Solute C Solution D Precipitate
6 What is a heterogeneous mixture? A A mixture with uniform composition B A mixture with non-uniform composition C A pure substance D A chemical compound
7 Which of the following is an example of a solid-solid mixture? A Air B Salt and water C Sand and sugar D Milk
8 What is the process of separating components of a mixture using a magnet called? A Magnetic separation B Filtration C Distillation D Sieving
9 What is the process of separating a liquid from a solution by boiling and condensing called? A Filtration B Distillation C Evaporation D Decantation
10 What is the Tyndall effect? A The scattering of light by particles in a colloid B The dissolving of solute in solvent C The separation of mixture by filtration D The settling of particles in a suspension
11 What is the substance that dissolves another substance in a solution called? A Solute B Solvent C Solution D Suspension
12 What is a mixture? A A pure substance with fixed composition B A combination of two or more substances that are not chemically combined C A chemical reaction between substances D A single element
14 Which of the following is an example of a solution? A Muddy water B Salt solution C Orange juice with pulp D Smoke
15 Which of the following is a homogeneous mixture? A Sand and water B Oil and water C Salt dissolved in water D Muddy water
16 What is the process of separating a mixture by pouring off the liquid after settling called? A Filtration B Decantation C Distillation D Evaporation
17 What is the main difference between a mixture and a pure substance? A Mixtures have variable composition; pure substances have fixed composition B Mixtures are always solid; pure substances are always liquid C Mixtures cannot be separated; pure substances can D Mixtures are always homogeneous
18 Which of the following is a characteristic of a heterogeneous mixture? A Uniform composition B Non-uniform composition C It is always a solution D It does not show Tyndall effect
22 Which of the following can be separated by magnetic separation? A Sand and water B Iron and sulfur C Salt and sugar D Oil and water
25 Which of the following is a liquid-liquid mixture? A Sand and water B Oil and water C Salt and sugar D Iron and sulfur