9th standard Science Chapter-3 November 30, 2020December 26, 2020wefru 9th Standard Science quiz Chapter-3 0 Created on November 30, 2020 By wefru 9thStandard Science Chapter 3 TEST YOUR SKILLS 1 / 10 Q.21 Heterogeneous mixture in which the solute particles do not dissolve and remain suspended throughout the solvent and the solute particles can be seen with the naked eye is known as: Colloidal solution Super saturated solution Sublimation Suspensions 2 / 10 Q.22 In tincture of iodine, find the solute and solvent? alcohol is the solute and iodine is the solvent iodine is the solute and alcohol is the solvent any component can be considered as solute or solvent tincture of iodine is not a solution 3 / 10 Q.23 The continuous zig-zag movement of colloidal particles in a dispersion medium is called Dispersion Tyndall effect Brownian movement Oscillation 4 / 10 Q.24 A pure substance which is made up of only one kind of atom and cannot be broken into two or more simpler substances by physical or chemical means is referred to as a compound an element a molecule a mixture 5 / 10 Q.25 Which of the following non-metal is a good conductor of electricity? Aluminium Silicon Graphite Gold 6 / 10 Q.26 Which of the following property does not describe a compound? It is composed of two or more elements It is a pure substance. It cannot be separated into constituents by physical means It is mixed in any proportion by mass 7 / 10 Q.27 When two liquids do not mix, they form two separate layers and are known as Miscible liquids Immiscible liquids Saturated liquids Super saturated liquids 8 / 10 Q.28 How one can separate ammonium chloride from a mixture containing ammonium chloride and sodium chloride? Precipitation Sublimation Chromatography Cetrifugation 9 / 10 Q.29 The amount of solute present per unit volume or per unit mass of the solution/solvent is known as Composition of solute Concentration of a solvent Concentration of a solute Concentration of a solution 10 / 10 Q.30 According to the definition of pure substance, which of the following is a pure substance? Ice Mercury Iron All of these Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz