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Chemistry Mcqs

The type of filtering media used for filtration depending upon____________________?

  • (A)  Nature of reactants
  • (B)  Nature of crucible
  • (C)  Nature of product
  • (D)  Nature of precipitate
Submitted By :Ali Uppal


Water absorber used in combustion analysis is___________________?

  • (A)  50% KOH
  • (B)  Lime water
  • (C)  CaCl2
  • (D)  Mg (CIO4)2
Submitted By :Ali Uppal


Which of the following set has all species isoelectronic__________________?

  • (A)  F – Cl – Br
  • (B)  Li+1 – Na+1 – K+1
  • (C)  F – Ne – Na+
  • (D)  H+ – H- – H
Submitted By :Ali Uppal


The volume occupied by 1.4g CO at S.T.P is___________________?

  • (A)  22.4 dm3
  • (B)  2.24 dm3
  • (C)  1.12 cm3
  • (D)  1.12 dm3
Submitted By :Ali Uppal


Isotopes differs in______________________?

  • (A)  arrangement of electrons in orbitals
  • (B)  position in the periodic table
  • (C)  properties depend upon mass
  • (D)  chemical properties
Submitted By :Ali Uppal


The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?

  • (A)  Ethylene iodide
  • (B)  Ethylene bromide
  • (C)  Ethylene chloride
  • (D)  Ethylene fluoride
Submitted By :Ali Uppal


Which of the following elements conduct electricity and also melts below 100°C ?

  • (A)  Aluminium
  • (B)  Sodium
  • (C)  Carbon
  • (D)  Sulphur
Submitted By :Ali Uppal


Acid present in acid rain may be_________________?

  • (A)  H2SO4
  • (B)  HNO3
  • (C)  both A and B
  • (D)  none of the above
Submitted By :Ali Uppal


The unit of the rate constant (k) is same as that of rate of reaction________________?

  • (A)  First order reaction
  • (B)  Second order reaction
  • (C)  Zero order reaction
  • (D)  Third order reaction
Submitted By :Ali Uppal


Which is the unit of (K) rate constant for zero order reaction ?

  • (A)  s-1
  • (B)  mol dm-3 s-1
  • (C)  mol-1 dm3 s-1
  • (D)  mol-2 dm6 s-1
Submitted By :Ali Uppal