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CHAPTER NO 6

Solutions

Encircle the most appropriate answer among the following options


1          The emulsions are the type of solution:

(a) Solid in solid

(b) Liquid in solid

(c) Gas in liquid

(d) None of these


2          In true solution, the particle are the type of solution:

(a) 0.1mu

(b) 10.0 mu

(c) 0.5mu

(d) 1.0 mu


3          Which property is not for suspensions?

(a) Homogeneous

(b) Cannot be seen by naked eye

(c) Not a true solution

(d) Solid in liquid


4          The concentration of the solute in solution, when it is en equilibrium with solid substance, at a particular temperature is called:

(a) Molarity

(b) Dilution

(c) Colloidal solution

(d) Supersaturated solution


5          A solution containing relatively higher concentration of solute is called:

(a) Dilute solution

(b) Saturated solution

(c) Concentrated solution

(d) Suspension


6          Fog is an example of solution:

(a) Gas in liquid

(b) Liquid in gas

(c) Liquid in gas

(d) Solid in liquid


7          Emulsions are the colloidal dispersion of liquid in:

(a) Solid

(b) Gas

(c) liquid

(d) Water


8          The suspension particles have appearance:

(a) Uniform

(b) Transparent

(c) Opaque

(d) Both ‘A’ and ‘B’


9          Starch, glue are the examples of:

(a) Colloidal solution

(b) Solution

(c) Colloids

(d) Crystalloids


10        Solution which can dissolve further amount of a solute at particular temperature is called:

(a) Saturated solution

(b) Unsaturated solution

(c) Colloidal solution

(d) Supersaturated solution


11        The solution which can easily pass through parchment membrane is considered as:

(a) Colloidal solution

(b) True solution

(c) Suspensions

(d) Crystalloids


12        Change of temperature can change the of a solute in a solvent.

(a) Dilution

(b) Solubility

(c) Molarity

(d) Dipole moment


13        The ionic and polar compounds like NaCl and HCl are more soluble in water than non-polar covalent compounds like.

(a) CC14

(b) Benzene

(c) CS2

(d) All of these


14        Which one produced colloidal solution

(a) Blood

(b) Cooper Sulphate solution

(c) Silver nitrate solution

(d) None of these


15        Concentration is most often expressed as the ratio of the amount of the amount of solution.

(a) Solute

(b) solvent

(c) brine

(d) salt


16        Number of moles of solute per dm of the solution is called:

(a) Molarity

(b) molality

(c) normality

(d) density


17        Sodium amalgam which two metals as present

(a) Na and Mg

(b) Na and Mu

(c) Na and Hg

(d) Zn and Co


18        The concentrated solution of NaCl is called:

(a) Fluid

(b) Brass

(c) Brine

(d) Plasma


19        Brass is a familiar alloy, made of:

(a) zinc + carbon

(b) Zinc + copper

(c) copper + iron

(d) zinc + lead


20        The homogeneous mixture of two or more compounds is known as :

(a) solute

(b) solvent

(c) solution

(d) fluid


21        Which of the following solutions contains least amount of water?

(a) 2M

(b) 1M

(c) 0.5 M

(d) 0.25M


22        Opal is an example of solution

(a) Liquid in solid

(b) Solid in gas

(c) Solid in solid

(d) Gas in liquid


23        0.1M solution is diluted to ten time, its new morality is:

(a) 0.01M

(b) 0.9M

(c) 0.2M

(d) 0.1M


24        Which one of the following is true solution?

(a) Paints

(b) Alcohol in water

(c) Milk

(d) Milk of magnesia


25        Heat is absorbed on dissolving which one of the following salts:

(a) NaCL

(b) Ce2(SO4)3

(c) NaNO3

(d) Li2SO4


26        Smoke is an example of solution

(a) Solid in gas

(b) Gas in liquid

(c) Liquid in solid

(d) Gas


27        in solid KCL is soluble in

(a) Water

(b) Benzene

(c) Ether

(d) Kerosene oil


28        Naphthalene is soluble in

(a) Water

(b) Ether

(c) Carbon tetrachloride

(d) Both (b) and (c)


29        Blood is an example of

(a) True solution

(b) Suspension

(c) Colloid

(d) None of all


30        20 g of NaOH has been dissolved in 0.5dm of the solution its molarity is:

(a) 0.1M

(b) 1.0M

(c) 0.5M

(d) 1.5M


31        What mass of NaOH is required to prepare 1M 500cm3 of the solution:

(a) 10g

(b) 20g

(c) 30g

(d) 40g


32        What volume of 2M solution of H2SO4 is required to prepare 500 cm3 0.1M solution?

(a) 10cm3

(b) 15cm3

(c) 20cm3

(d) 25cm3


33        2g of NaCl has been dissolved in 20.0g of H20, its % m/m is

(a) 9.09%

(b) 19.09%

(c) 1.9%

(d) 10.0%


34        Identify among the following which one is universal solvent?

(a) CH3COOH

(b) Liquid ammonia

(c) Water

(d) Ethanol


35        Which one of the following salts gives out heat on dissolving in water?

(a) NaCl

(b) Cez (SO4)3

(c) KNO3

(d) KCI


36        Mist is an example of solution

(a) Liquid in gas

(b) Gas in liquid

(c) Solid in gas

(d) Gas in solid


37        Which one of the following is a liquid in solid solution?

(a) Sugar in water

(b) Butter

(c) Solvent to solution

(d) Fog


38        Which one of the following solutions contains more water?

(a) 2 M

(b) 1 M

(c) 0.5 M

(d) 0.25 M


39        Tyndall effect is shown by

(a) Sugar solution

(b) Jelly

(c) Paints

(d) Chalk solution


40        Tyndall effect is due to

(a) Blockage of beam of light

(b) Non-scattering of beam of light

(c) Scattering of beam of light

(d) Passing through beam of light


41        If 10cm3 of alcohol is dissolved in 100g of water, it is called

(a) % m/m

(b) % m/v

(c) %v/m

(d) %v/v


42        Sea water is a source of

(a) Fog

(b) Opal

(c) Soft drink

(d) Cheese


43        Which one of the following solutions contains maximum amount of water?

(a) 2M

(b) 1M

(c) 0.5 M

(d) 0.25 M


44        Brass is a solid solution of

(a) Zn and Cd

(b) Zn and Cu

(c) Zn and Hg

(d) Zn and Mg


45        10cm3 of 0.01 molar KMnO4 solution has been diluted to 100 cm3 its molarity will become

(a) 0.001 M

(b) 0.1 M

(c) 0.01M

(d) 1 M