ADDITIONAL QUESTIONS – ONE MARK

1. The hybridisation in ICl4– ion is

a) sp3                           b) sp3d                                    c) sp3d2                      d) sp3d3

2. Which of the following is the second most abundant element in earth’s crust?

a) Carbon                    b) Silicon                     c) Germanium                         d) Tin

3. The most malleable and ductile of all metals is

a) silver                        b) gold                                     c) copper                     d) zinc

4. Which is used in Gas lamp materials?

a) Ceria                        b) Thoria                      c) Misch metal             d) Both (a) & (b)

5. The type of isomerism found in the complexes [Co(NO2) (NH3)5]SO4 and [Co(SO4)(NH3)5]NO2 is

a) Hydrate isomerism                                      b) Coordination isomerism

c) Linkage isomerism                                      d) Ionisation isomerism

6. The crystal lattice with cooradination number four is

a)  CsCl                       b) ZnO                                    c) BN                          d) NaCl

7. The entropy change for the following process possessing ∆H(transition) as 2090 J .mol–1

1mole Sn (α, 13°C ) ⇌ 1mole Sn (b,13°C ) is

a) 22.007 J. mol –1K–1                                   b) 7.307 J. mol–1 K–1

c) 0.314 J. mol–1 K–1                                     d) 109.52 J.mol–1 K–1

8. In an equilibrium reaction, when Q <  Kc then

a) forward reaction is favoured                                  b) reverse reaction is favoured

c) both forward and reverse reaction are  favoured    d) none of these

9. In which of the following gaseous reaction Kp < Kc?

a) PCl5(g) ⇌ PCl3(g) + Cl2(g)                                   b) H2(g) + I2(g) ⇌ 2HI(g)

c) N2(g) + 3H2(g) ⇌ 2NH3(g)                                   d) CO(g) + H2O(g) ⇌ CO2(g) + H2(g)

10. Arrhenius equation is

a) k = A . e–1/RT        b) k = A . e–RT/Ea      c) k = A . e –Ea/RT     d) k = A . eEa/RT

11. When diethyl ether reacts with chlorine in presence of sunlight it gives

a) a- chlorodiethyl ether                                    b) a, a - dichlorodiethyl ether                 

c) perchlorodiethyl ether                                  d) both (a) & (b)

12. Intermolecular hydrogen bonds are not present in

a) CH3COOH             b) C2H5 – O – C2H5 c) CH3CH2OH                       d) C2H5NH2

                               conc. H2SO4

13.  3CH3COCH3           →          the product is

a) Mesitylene               b) Mesity oxide           c) Phorone                   d) Paraldehyde

14. Nitrobenzene on electrolytic reduction in conc. Sulphuric acid, the intermediate formed is

a) C6H5NH – C6H5   b) C6H5NHOH          c) C6H5 – N = N – C6H5         d) C6H5.HSO4

15. Which one of the following is the most basic?

a) Ammonia                b) Methylamine           c) dimethylamine                    d) Aniline

16. An example for reducing disaccharide is

a) Glucose                   b) Fructose                  c) Sucrose                                d) Lactose

17. The hybridisation in PCl5 molecule is:

a) sp3                           b) sp3d2                      c) sp3d                                                d) sp2

18. The total number of atoms per unit cell in fcc is:

a) 1                              b) 2                              c) 3                                          d) 4

19. Thermodynamic condition for irreversible spontaneous process at constant ‘T’ and ’P’ is :

a) ∆G < 0                    b) ∆G = 0                    c) ∆G > 0                                d) both (b) and (c)

20. Silica gel is utilised for the _______ of the number of gases.

a) adsorption               b) absorption               c) desorption                           d) all of these

21. Strong mineral acids _______ the ethereal oxygen forming oxonium salts.

a) Electronate              b) protonate                 c) deprotonate                         d) dehydrate

22. Conversion of benzene diazonium chloride to chlorobenzene is:

a) Sandmeyer’s reaction                                  b) Stephen’s reaction

c) Gomberg reaction                                       d) Schotten - Baumann reaction

23. The unit of electron affinity is:

a) MeV                        b) JK–1                       c) eV                                       d) kJ mol–1

24. The compound with garlic taste is:

a) H3PO4                    b) H3PO3                    c) P2O3                                   d) P2O5

25. β- particle is represented as:

a) +1e0                        b) – 1e0                       c) 1H1                                     d) 2He4

26. Semiconductors which exhibit conductivity due to the flow excess negative electrons are called:

a) super conductors                                         b) n-type semiconductors

c) p-type semiconductors                                d) Insulators

27. For an isothermal process, the entropy change of the universe during a reversible process is:

a) Zero                        b) More                       c) Less                                     d) None of the above

28. In the formation of HI from H2 and I2, Kp = Kc because:

a) ∆ng = 2                   b) ∆ng = 1                   c) ∆ng = 0                               d) ∆ng = –1

29. The rate constant for a first order reaction is 1.54 x 10–3 sec–1. Its half life period is:

a) 540 seconds                        b) 450 seconds                        c) 45 seconds                          d) 54 seconds

30. Ruby glass is a colloidal solution of:

a) Solid- sol                 b) Gel                          c) Emulsion                             d) Sol

31. IUPAC Name of this compound CH3 – O – CH – CH3:

                                                                    |

                                                                    CH3

a)1-Methoxy propane                                      b) Methyl isopropyl ether

c) Isopropyl methyl ether                                d) 2-Methoxy propane

32. Aspirin is:

a) Salicylic acid                                               b) Acetyl salicylic acid

c) Salicylaldehyde                                           d) Methyl Salicylate

33. Chloropicrin is:

a) CCl3CHO               b) CCl3NO2               c) CHCl3                                 d) CH3NO2 

                       NaNO2/HCl 

34. C6H5NH2 -----------> X. Identify X.

                        273K – 278K

a) C6H5Cl                   b) C6H5NHOH          c) C6H5N2Cl                          d)  C6H5OH

35. ______occur in the white matter of the brain and of all nervous tissue.

a) Lacithin                   b) Cephalin                  c) Galactolipids                       d) Amino acid

36. Electrophoresis is _________ property of a colloid

a) Optical                    b) Kinetic                    c) Electrical                             d) Magnetic

37. The molecular orbitals are filled according to

a) Pauli’s exclusion principle                           b) Hund’s rule

c) Aufbau principle                                         d) All the above

38. Which one of the following crystal has 8 : 8 structure?

a) MgF2                      b) CsCl                        c) KCl                                    d) NaCl

39. A ‘d’ block metal ion has a magnetic moment of 1.732 BM. The number of unpaired electrons are

a) 1                              b) 2                             c) 3                                         d) 4

40. Cephalins have been implicated in the process of

a) Metabolism                                                 b) Organisation of the body

c) Blood purification                                       d) Blood coagulation.

ONE MARK Qs : S–12 [1 - 16] M–2013 [17 - 22] J–13 [23 – 35] S – 13 [36 – 40]