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1) Solid solutions of metals are called a. alloys b. amalgams c. saturated solutions d. supersaturated solution
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2) The mass of NaOH present per dm3 of 0.25M NaOH solution is a. 10 g b. 8 g c. 5 g d. 2 g
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3) In solutions the particles are a. invisible b. visible by naked eye c. visible by ordinary microscope d. visible by electron microscope
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4) The concentration of a dilute solution is a. high b. very high c. same d. low
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5) In amalgams the solvent is a. gas b. liquid c. solid d. none of above
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6) The substance present in a lesser amount in solution is a. solute b. solvent c. aqueous solvent d. none of above
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7) When the tiny particles of a substance are dispersed through a medium then the mixture is called a. alloys b. amalgams c. suspension d. colloid
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8) The particle size in suspension is a. less than 10³ nm b. 10² nm c. greater than 10³ d. 10 nm
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9) The molarity of solution which contains 40 g urea dissolved in 500cm3 is a. 1.2 M b. 1.389 M c. 1.334 M d. 1.5 M
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10) An unsaturated solution a. cannot dissolve more solute b. cannot add more solvent c. can add more solute d. none of above
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