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Chemical Structure and Bonding

Covers molecular geometry and VSEPR theory, crystal systems, magnetic properties of ions, coordination complexes, s.p. and d-block elements, intermolecular forces, and inorganic chemistry fundamentals

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is a pair of polyesters?

  1. Styron and Teflon
  2. Styron and Dacron
  3. Dacron and Glyptal
  4. Glyptal and Perlon
  5. Teflon and Perlon
Question 2 Multiple Choice (Single Answer)

Which of the following enzymes contain(s) cobalt?

  1. Methionyl aminopeptidase
  2. Cytochrome oxidase
  3. Laccase
  4. Isobutyryl-CoA mutase
  1. Only 1
  2. 1 and 2
  3. 2 and 3
  4. Only 4
  5. 1 and 4
Question 3 Multiple Choice (Single Answer)

Which of the following are globular proteins?

  1. Insulin
  2. Visual purple
  3. Myosin
  4. Collagen
  5. Keratin
  6. Thrombin
  1. 1, 2 and 3
  2. 1, 2 and 6
  3. 2, 3 and 5
  4. 2, 4 and 6
  5. 4, 5 and 6
Question 4 Multiple Choice (Single Answer)

Which of the following sets represents only diamagnetic ions?

  1. Cu2+, Zn2+, Sc3+
  2. Zn2+, Sc3+, Ti4+
  3. Cu+, Mn2+, Cr3+
  4. Ni2+, Cu2+, Zn2+
  5. Cu+, Mn2+, Sc3+
Question 5 Multiple Choice (Single Answer)

Which of the following statements are false regarding ammonia?

  1. Liquid ammonia is concentrated solution of NH3 in water.
  2. Ammonia is a non-combustible hydride.
  3. Ammonia has a higher dielectric constant than water.
  4. Liquid ammonia is used in refrigeration.
  1. 1 and 2
  2. 1 and 3
  3. 2 and 3
  4. 2 and 4
  5. 3 and 4
Question 6 Multiple Choice (Single Answer)

Which of the following statements are incorrect?
P. Basicity of phosphorous acid is three.
Q. The bleaching action of SO2 is due to its reducing action.
R. Sulphur acts as an oxidising agent in the vulcanisation of rubber.
S. The C-C bond length in graphite is shorter than that in diamond.

  1. P and Q
  2. P and R
  3. Q and R
  4. Q and S
  5. R and S
Question 7 Multiple Choice (Single Answer)

Match the column I with column II:</strong
Column I 
        </strong>|<strong>Column II</strong>|

|A. Philosopher’s wool|1. Sodium chloride|
|B. Nitre|2. Potassium nitrate|
|C. Tablet salt |3. Potassium carbonate|
|D. Pearl ash |4. Zinc oxide|

  1. A-4, B-2, C-1, D-3
  2. A-2, B-4, C-1, D-3
  3. A-3, B-1, C-2, D-4
  4. A-1, B-3, C-4, D-2
  5. A-3, B-4, C-1, D-2
Question 8 Multiple Choice (Single Answer)

Which of the following statements is/are false?
P. Sulphide ores are concentrated by froth floatation process.
Q. Calcination is the process of heating the ores strongly in the presence of excess air.
R. Roasting is the process of heating the ores strongly in the absence of air.
S. The impurities present in the ores are called gangue.

  1. Only P
  2. P and Q
  3. Only R
  4. Q and R
  5. R and S
Question 9 Multiple Choice (Single Answer)

Which of the following are the ores of plumbum?

  1. Anglesite
  2. Argentite
  3. Calaverite
  4. Cassiterite
  5. Cerussite
  6. Galena
  1. 1, 3 and 5
  2. 1, 5 and 6
  3. 2, 3 and 5
  4. 2, 4 and 6
  5. 3, 4 and 6
Question 10 Multiple Choice (Single Answer)

Which solid will have weakest intermolecular forces?

  1. Ice
  2. Phosphorus
  3. Naphthalene
  4. Sodium fluoride
  5. Anthracene
Question 11 Multiple Choice (Single Answer)

Which of the following statements are false regarding transition elements?

  1. Osmium is the densest transition metal.
  2. All the elements of 3d series are good reducing agents.
  3. Highest oxidation state shown by any transition element is +7.
  4. The reactivity of transition elements decreases with the increase in their atomic number.
  1. 1 and 2
  2. 1 and 3
  3. 2 and 3
  4. 2 and 4
  5. 3 and 4
Question 12 Multiple Choice (Single Answer)

Match the column – I (molecules) with column – II (bond angles) and select the correct answer
Molecules 
        </strong>|<strong>Bond angles</strong>|

|A. XeOF5−|1. 90°, 72° and 180°|
|B. BrF5|2. 90° and 180°|
|C. SF4|3. 72°, 90° and 144° |
|D. IF7|4. 173.1° and 101.6°|

  1. A - 4, B - 3, C - 2, D - 1
  2. A - 2, B - 1, C - 4, D - 3
  3. A - 2, B - 1, C - 3, D - 4
  4. A - 3, B - 2, C - 4, D - 1
  5. A - 1, B - 2, C - 3, D - 4
Question 13 Multiple Choice (Single Answer)

Which of the following is a pair of covalent network solids?

  1. Sugar and quartz
  2. Buckminsterfullerene and dry ice
  3. Buckminsterfullerene and quartz
  4. Dry ice and sugar
  5. Barium oxide and quartz
Question 14 Multiple Choice (Single Answer)

In which of the following types of crystal systems, all unit cell vector angles are equal?

  1. Hexagonal
  2. Monoclinic
  3. Orthorhombic
  4. Tetragonal
  1. 1 and 2
  2. 1 and 3
  3. 2 and 3
  4. 2 and 4
  5. 3 and 4
Question 15 Multiple Choice (Single Answer)

Match the column A (molecular ions) with column B (shapes)
Molecular ions 
        </strong>|<strong>Shapes</strong>|

|A. XeF82−|1. Planar pentagonal|
|B. XeF5−|2. Tricapped trigonal prismatic|
|C. ReH92−|3. Pentagonal pyramidal|
|D. XeOF5−|4. Square antiprismatic|

  1. A - 4, B - 1, C - 2, D - 3
  2. A - 4, B - 2, C - 1, D - 3
  3. A - 1, B - 2, C - 3, D - 4
  4. A - 2, B - 3, C - 4, D - 1
  5. A - 3, B - 4, C - 1, D - 2
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