1. A heterogeneous mixture where particles settle out of the mixture upon standing. * 1 point True solutons Colloids Suspensions Pure substances 2. Solution made by dissolving a gas in a liquid. * 1 point Lemonade Alloy Soda water Air 3. Identify which of the options is correctly classified into elements , compounds and mixtures . * 1 point Captionless Image Granite - Element ; Copper -Compound ; Salt - Mixture Granite -Compound ; Copper - Element ; Salt - Mixture Granite - Mixture ; Copper -Element ; Salt - Compound Granite - Mixture ; Copper - Compound ; Salt - Element 4. The solvent for sulphur is __________________ * 1 point Water Iodine Alcohol Carbon di sulphide 5. Which of the following option is incorrect ? * 1 point Compounds are pure substances combined in any ratio. Mixtures are physically combined in any ratio . Mixtures are impure substances . Elements are made up of same kind of atoms . 6. Brass an alloy of copper and zinc is ________________ * 1 point Element Compound Homogeneous mixture Heterogeneous mixture 7. The continuous zig zag movement of colloidal particles in a medium is called ___________________ * 1 point Dispersion Brownian movement Tnydall effect Oscillation Which of the following is true for the compound FeS formed by heating iron and sulphur . * 1 point Can be separated using a magnet . It is a substance in which the constituents have their own melting and boiling points . The elements from which FeS is formed retain their identity . FeS is a pure substance 8. Observe the image given below carefully and classify them as element , compound or mixture . * 1 point Captionless Image A - MIXTURE ; B - COMPOUND ; C- ELEMENT B - MIXTURE ; A - COMPOUND ; C- ELEMENT C - MIXTURE ; B - COMPOUND ; A- ELEMENT A - MIXTURE ; C - COMPOUND ; B- ELEMENT 9. Which of the following is not a compound? * 1 point NaCl HCl NaOH Cl2
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heterogeneous mixture where particles settle out of the mixture upon standing. * 1 point True solutons Colloids Suspensions Pure substances 2. Solution made by dissolving a gas in a liquid. * 1 point Lemonade Alloy Soda water Air 3. Identify which of the options is correctly classified into elements , compounds and mixtures . * 1 point Captionless Image Granite - Element ; Copper -Compound ; Salt - Mixture Granite -Compound ; Copper - Element ; Salt - Mixture Granite - Mixture ; Copper -Element ; Salt - Compound Granite - Mixture ; Copper - Compound ; Salt - Element 4. The solvent for sulphur is __________________ * 1 point Water Iodine Alcohol Carbon di sulphide 5. Which of the following option is incorrect ? * 1 point Compounds are pure substances combined in any ratio. Mixtures are physically combined in any ratio . Mixtures are impure substances . Elements are made up of same kind of atoms . 6. Brass an alloy of copper and zinc is ________________ * 1 point Element Compound Homogeneous mixture Heterogeneous mixture 7. The continuous zig zag movement of colloidal particles in a medium is called ___________________ * 1 point Dispersion Brownian movement Tnydall effect Oscillation Which of the following is true for the compound FeS formed by heating iron and sulphur . * 1 point Can be separated using a magnet . It is a substance in which the constituents have their own melting and boiling points . The elements from which FeS is formed retain their identity . FeS is a pure substance 8. Observe the image given below carefully and classify them as element , compound or mixture . * 1 point Captionless Image A - MIXTURE ; B - COMPOUND ; C- ELEMENT B - MIXTURE ; A - COMPOUND ; C- ELEMENT C - MIXTURE ; B - COMPOUND ; A- ELEMENT A - MIXTURE ; C - COMPOUND ; B- ELEMENT 9. Which of the following is not a compound? * 1 point NaCl HCl NaOH Cl2