Class 9th Science Chapter – 2 Is Matter Around Us Pure
| Textbook | NCERT |
| Class | 9th |
| Subject | Science |
| Chapter | 2nd |
| Chapter Name | Is Matter Around Us Pure |
| Category | Class 9th Science |
| Medium | English |
| Source | Last Doubt |
| Class 9th Science Chapter – 2 Is Matter Around Us Pure MCQ with answer In this Chapter We Will read about Is Matter Around Us Pure, Pure Matter, Mixture, Types of Mixtures, Homogeneous Mixture, Heterogeneous Mixture, Types of solutions, Solution, Concentration of a solution, Saturated Solution, Unsaturated solution, Supersaturated solution, Suspension, Metals and More much. you have provided easy notes which use in your study make progress in education. |
Class 9th Science Chapter – 2 Is Matter Around Us Pure
Chapter – 2
Is Matter Around Us Pure
MCQ
| (1) When the liquid is spun rapidly, the denser particles are forced to the bottom and the lighter particles stay at the top. This principle is used in? A. Centrifugation B. Fractional distillation C. Evaporation D. Tunneling Answer – (A) Centrifugation |
| (2) 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? A. Colloidal solution B. Super saturated solution C. Sublimation D. Suspensions Answer – (D) Suspensions |
| (3) If we put camphor in an open container, its amount keeps on decreasing due to the phenomenon of? A. Evaporation B. Precipitation C. Condensation D. Sublimation Answer –(D) Sublimation |
| (4) What is the name of the metal which exists in liquid state at room temperature? A. Sodium B. Potassium C. Mercury D. Bromine Answer – (C) Mercury |
| (5) What is the name of the metal which exists in liquid state at room temperature? A. Mercury B. Bromine C. Sodium D. Potassium Answer – (B) Bromine |
| (6) In tincture of iodine, find the solute and solvent? A. Alcohol is the solute and iodine is the solvent B. Iodine is the solute and alcohol is the solvent C. Any component can be considered as solute or solvent D. Tincture of iodine is not a solution Answer – (B) Iodine is the solute and alcohol is the solvent |
| (7) Which of the following elements is not a metalloid? A. Boron B. Silicon C. Germanium D. Tungsten Answer – (D) Tungsten |
| (8) 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. A compound B. An element C. A molecule D. A mixture Answer – (B) An element |
| (9) When two liquids do not mix, they form two separate layers and are known as A. Miscible liquids B. Immiscible liquids C. Saturated liquids D. Super saturated liquids Answer – (B) Immiscible liquids |
| (10) According to the definition of pure substance, which of the following is a pure substance? A. Ice B. Mercury C. Iron D. All of these Answer – (D) All of these |
| (11) The continuous zig-zag movement of colloidal particles in a dispersion medium is called? A. Dispersion B. Tyndall effect C. Brownian movement D. Oscillation Answer – (C) Brownian movement |
| (12) Which of the following non-metal is a good conductor of electricity? A. Aluminium B. Silicon C. Graphite D. Gold Answer – (C) Graphite |
| (13) Which of the following property does not describe a compound? A. It is composed of two or more elements B. It is a pure substance. C. It cannot be separated into constituents by physical means D. It is mixed in any proportion by mass Answer – (D) It is mixed in any proportion by mass |
| (14) The amount of solute present per unit volume or per unit mass of the solution/solvent is known as? A. Composition of solute B. Concentration of a solvent C. Concentration of a solute D. Concentration of a solution Answer – (D) Concentration of a solution |
| (15) How one can separate ammonium chloride from a mixture containing ammonium chloride and sodium chloride? A. Precipitation B. Sublimation C. Chromatography D. Cetrifugation Answer – (B) Sublimation |
You Can Join Our Social Account
| Youtube | Click here |
| Click here | |
| Click here | |
| Click here | |
| Click here | |
| Telegram | Click here |
| Website | Click here |