Daily Updated MCQS

Q:The only nonmetal element that exists in liquid form is

  • (A)Bromine
  • (B)Mercury
  • (C)Calcium
  • (D)Platinum

    • The Correct Answer is Bromine

    Uploaded By Javeria Naushad

Q:The elements in any one group have similar

  • (A)atomic number
  • (B)mass number
  • (C)properties
  • (D)None of these

    • The Correct Answer is properties

    Uploaded By Javeria Naushad

Q:The first period of elements consists of only

  • (A)hydrogen
  • (B)hydrogen and helium
  • (C)hydrogen and oxygen
  • (D)hydrogen and nitrogen

    • The Correct Answer is hydrogen and helium

    Uploaded By Javeria Naushad

Q:Vitamin ________ is also called ascorbic acid.

  • (A)A
  • (B)D
  • (C)C
  • (D)None of these

    • The Correct Answer is C

    Uploaded By Javeria Naushad

Q:One atomic mass unit (amu) is a mass unit equal to exactly one-twelth the mass of a _____ atom.

  • (A)carbon-8
  • (B)carbon-12
  • (C)carbon-16
  • (D)None of these

    • The Correct Answer is carbon-12

    Uploaded By Javeria Naushad

Q:A _____ consists of the elements in any one column of the periodic table

  • (A)period
  • (B)group
  • (C)block
  • (D)None of these

    • The Correct Answer is group

    Uploaded By Javeria Naushad

Q:A _____ consists of the elements in any one horizontal row of the periodic table.

  • (A)group
  • (B)period
  • (C)block
  • (D)None of these

    • The Correct Answer is period

    Uploaded By Javeria Naushad

Q:An electrolyte is a substance that produces _____ solution when dissolved in water.

  • (A)conducting
  • (B)nonconducting
  • (C)poorly conducting
  • (D)None of these

    • The Correct Answer is conducting

    Uploaded By Javeria Naushad

Q:Different fractions of petroleum are separated by ?

  • (A)Cooling
  • (B)Fractional Distillation
  • (C)Steam distillation
  • (D)None of these

    • The Correct Answer is Fractional Distillation

    Uploaded By Javeria Naushad

Q:Which one is a step of metallurgical process ?

  • (A)Crystallization
  • (B)Roasting
  • (C)Rusting
  • (D)None of these

    • The Correct Answer is Roasting

    Uploaded By Javeria Naushad

Q:Raw materials used for manufacturing urea are

  • (A)CO2 and NH3
  • (B)H2 and NH3
  • (C)HCL and NH3
  • (D)None of these

    • The Correct Answer is CO2 and NH3

    Uploaded By Javeria Naushad

Q:Petroleum is a mixture of many

  • (A)Salt
  • (B)Hydrocarbons
  • (C)Hydroxide
  • (D)Acids

    • The Correct Answer is Hydrocarbons

    Uploaded By Javeria Naushad

Q:Urea is widely used in fertilizers as a source of

  • (A)Biomass
  • (B)Sulfur
  • (C)Phosphate
  • (D)nitrogen

    • The Correct Answer is nitrogen

    Uploaded By Javeria Naushad

Q:Sodium carbonate is commercially manufactured by

  • (A)Ostwalds Process
  • (B)Habers Process
  • (C)Solvay Process
  • (D)None of these

    • The Correct Answer is Solvay Process

    Uploaded By Javeria Naushad
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