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Chemistry Test

General Chemistry: Solid State Chemistry, Atomic Structure, Electrochemistry, and Inorganic Chemistry covering ionic solids, crystal structures, hydrogen atom model, and s.p. and d block elements.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

For which of the following lattice systems, highest number of Bravais lattices is possible?

  1. Cubic
  2. Tetragonal
  3. Orthorhombic
  4. Rhombohedral
  5. Monoclinic
Question 2 Multiple Choice (Single Answer)

Which of the following statements is correct?

  1. The reference calomel electrode is made from HgCl2.
  2. Electrolysis involves oxidation and reduction at cathode and anode respectively.
  3. The standard electrode potential is measured by galvanometer.
  4. If a salt bridge is removed between the two half cells, the voltage will drop to zero.
  5. In electroplating, the article to be electroplated serves as a cathode.
Question 3 Multiple Choice (Single Answer)

Which of the following types of solids involve hydrogen bonding, dipole-dipole interaction and London dispersion forces?

  1. Ionic solids
  2. Metallic solids
  3. Molecular solids
  4. Network solids
  5. All of the above
Question 4 Multiple Choice (Single Answer)

Which of the following statements about chemisorption is false?

  1. Adsorbate molecules are bound to the surface of the adsorbent by chemical bonds.
  2. Endothermic process.
  3. Increases with increase of surface area of the adsorbent.
  4. Highly specific in nature.
  5. It is also known as activated adsorption.
Question 5 Multiple Choice (Single Answer)

Which of the following statements is correct about ionic compounds?

  1. Ionic bond is non directional.
  2. Ionic compounds do not conduct electricity in their molten state.
  3. Ionic compounds are highly soluble in non polar solvents.
  4. The rates of ionic reactions are very slow.
  5. Ionic compounds have very low melting and boiling points.
Question 6 Multiple Choice (Single Answer)

____________ are examples of reverse spinel.

  1. MgAl2O4 and Mn3O4
  2. Fe3O4 and Mn3O4
  3. MgAl2O4 and NiFe2O4
  4. Fe3O4 and NiFe2O4
  5. Fe3O4 and Co3O4
Question 7 Multiple Choice (Single Answer)

Which of the following sets represents only soft acids?

  1. Ni(0), Cu(I), Mg(II), Al(III)
  2. Ni(0), Cu(I), Hg(II), Pt(II)
  3. Cu(I), Cu(II), Hg(II), Fe(III)
  4. Ag(I), Au(I), Zn(II), Mg(II)
  5. Li(I), Ca(II), Al(III), Si(IV)
Question 8 Multiple Choice (Single Answer)

Which of the following pairs of silicates have same the general formula?

  1. Chain silicates and double chain silicates
  2. Double chain silicates and sheet silicates
  3. Sheet silicates and cyclic silicates
  4. Cyclic silicates and chain silicates
  5. Cyclic silicates and double sheet silicates
Question 9 Multiple Choice (Single Answer)

Which of the following statements is incorrect?

  1. Hard and Soft Acids and Bases (HSAB) theory was introduced by Pearson.
  2. Hard acids prefer binding to soft bases.
  3. Hard acids have high energy LUMOs and hard bases have high energy HOMOs.
  4. Hard acids and bases are small and non-polarisable.
  5. Soft acids and bases are large and more polarisable.
Question 10 Multiple Choice (Single Answer)

Which of the following sets represents only carbonate ores?

  1. Dolomite, Azurite, Chalcopyrite and Malachite
  2. Cassiterite, Pyrolusite, Azurite and Galena
  3. Pyrolusite, Magnetite, Siderite and Malachite
  4. Dolomite, Azurite, Siderite and Malachite
  5. Magnetite, Chalcopyrite, Malachite and Galena
Question 11 Multiple Choice (Single Answer)

The hydrogen emission spectrum consists of several series of lines, named after their discoverers. Which of the following spectral series of lines is/are found in the infrared region?

  1. Lyman, Balmer and Paschen series
  2. Balmer, Paschen and Pfund series
  3. Paschen, Brackett and Pfund series
  4. Paschen, Balmer and Pfund series
  5. Lyman, Balmer and Pfund series
Question 12 Multiple Choice (Single Answer)

Which of the following statements is not true?

  1. Hydrogen has the simplest line spectrum among all the elements.
  2. Absorption spectrum is formed when atoms or molecules are excited from a lower energy level to a higher energy level.
  3. Emission spectrum is formed when atoms or molecules are de-excited from a higher energy level to a lower energy level.
  4. Line Spectra are also known as molecular spectra.
  5. Band spectra is formed due to the vibrations and rotations of atoms in molecules.
Question 13 Multiple Choice (Single Answer)

Which of the following sets represents only ortho silicates?

  1. Thortveitite, Phenacite, Willemite
  2. Benitoite, Beryl, Phenacite
  3. Willemite, Zircone, Kaolinite
  4. Phenacite, Willemite, Zircone
  5. Beryl, Thortveitite, Kaolinite
Question 14 Multiple Choice (Single Answer)

Which of the following sets represents three dimensional silicates?

  1. Feldspars, Zeolites and Quartz
  2. Micas, Zeolites and Clay
  3. Asbestos, Quartz and Beryl
  4. Mica, Clay and Asbestos
  5. Zeolites, Mica and Quartz
Question 15 Multiple Choice (Single Answer)

Which of the following matches of ‘lattice system: edge lengths and axial angles’ is not correct?

  1. Cubic : a = b = c and α = β = γ = 90o
  2. Tetragonal : a = b ≠ c and α = β = γ = 90˚
  3. Orthorhombic : a ≠ b ≠ c and α = β = γ = 90˚
  4. Rhombohedral : a = b = c and α = β = γ ≠ 90˚
  5. Monoclinic : a ≠ b ≠ c and α ≠ β ≠ γ ≠ 90˚
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