Chemistry MCQs Online Quiz Test 46

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Solved 10th Class Chemistry MCQs With Answers

Q.1: Which of the following substance do not show continuous solubility curve ?

  1. KCIO4
  2. Na2SO4. 10H2O
  3. K2Cr2O7
  4. PbCl2

B

Q.2: Every sample of matter with uniform properties and fixed composition is called———?

  1. solute
  2. solvent
  3. solution
  4. phase

D

Q.3: The component of solution which is in smaller amount is called———?

  1. solvent
  2. solute
  3. phase
  4. ion

B

Q.4: 10ml of alcohol dissolve in 90ml of water unit of concentration used is——–?

  1. % w/w
  2. % w/v
  3. % v/v
  4. % v/w

C

Q.5: 58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be———-?

  1. 0.1 M
  2. 1 m
  3. 1 M
  4. 0.1 N

C

Q.6: If the volume of solution is equal to sum of volumes of its all components then the solution——-?

  1. will be an ideal solution
  2. will be non-ideal solution
  3. will show deviations from Raoults law
  4. both b And c

A

Q.7: The solution which distils over with change in composition——–?

  1. ideal solution
  2. zeotropic solution
  3. azeotropic solution
  4. non-ideal solution

B

Q.8: Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called——–?

  1. saturated solution
  2. solubility
  3. unsaturated solution
  4. super saturated solution

B

Q.9: The determination of correct molecular weight from Raoults law is applicable to———?

  1. a volatile solute in dilute solution
  2. a non-electrolyte And non volatile solute in concentrated solution
  3. a non-electrolyte And non volatile solute in concentrated solute
  4. non volatile solute in a dilute solution

D

Q.10: Beckmanns apparatus is used to measure——–?

  1. boiling point elevation
  2. depression in freezing point
  3. lowering of vapour pressure
  4. lowering of osmotic pressure

B