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CLASSIFICATION OF ELEMENTS AND PER, led, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 41. S-I: The second electron affinity of oxygen is, endothermic., S-II: Oxygen is the second highest, electronegative element, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., VALENCY AND OXIDATION STATES, & NATURE OF OXIDES,DIAGONAL, on, RELATIONSHIP, 42 In which group all the elements do not have 5, same number of valence electrons?, 2) First 3) Second 4) Seventh 8, 1) Zero, 43 Among a) Na,0, b) MgO, c) Al,0, d) P,O,, e) Cl,0, the most basic, most acidic and, amphoteric oxide can be, 1) a, b, c 2) b, e, c 3) a, e, c 4) e, c, a, 44. Beryllium shows diagonal relationship with, aluminium. Which of the following similarity, 7., 1, is incorrect?, 1) Be,C like Al,C, yields methane on, hydrolysis, 2) Be, like Al is rendered passive by HNO,, 3) Be (OH), like AI(OH), is basic, 4) Be forms beryllates and Al forms aluminate, 45. An atom of an element has electronic, configuration 2, 8, 1. Which of the following, statement is correct?, 2, 2:, 20, (1) The element's valency is 7, (2) The element exists as a diatomic molecule, (3) The element is a non-metallic in nature, (4) The element forms a basic oxide, 46 Th

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T VOL, eetronic, 712, CLASSIFICATION OF ELEMENTS AND PERIODICITY, 13. S-I: Each d-block series contains ten elements, S-II: The max capacity of d-orbitals is of ten, electrons as in each series d-orbitals are, gradually filled up., 1) Both I and II are correct., 2) Both I and Il are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., CHEMISTRY NEET -VOL-I, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., shell is, d",, IONIZATION POTENTIAL/ENERGY, are, 21. What is the correct order of ionisation, 4) 1&1, energy, 1)K< Cu<Cu <K, 2) K< Cu <Cu <K, 3) Cu <K <Cu <K*, 4) K<Cu <Cu < K, f second, of, ATOMIC RADII, 14 The correct order of variation in the sizes, of atoms is, 1) Be> C>F> Ne 2) Be < C<F< Ne, 3) Be> C> F< Ne 4) F> Ne > Be > C 22. The first ionization potential of four, 15. Which of the following grouping represents, a collection of iso-electronic species?, (At.Nos: Cs-55, Br-35), 1) Ca, Cs, Br, 3) N, F, Na, 16. The ionic species having largest size is, (1) Li (g), (3) Rb (aq), r the d, consecutive elements, present in the, second period of the periodic table are 8.3,, 11.3, 14.5 and 13.6 eV respectively. Which, one of the following is the first ionization, potential (in eV) of nitrogen?, 1) 13.6, 23. The electron configuration of elements A,, B and C are [He] 2s', INe]3s' and [4r] 4s', respectively. Which one of the following, order is correct for the first ionization, dp-blba, oints and, 2) Na', Ca", Mg, 4) Be, AP, Cr, 2) 11.3 3) 8.3, 4) 14.5, (2) Na" (aq), (4) Li (aq), I in the, 17. Which of the following has largest radius?, (1) Is, 2s, 2p, 3s, (2) Is, 25°, 2p, 3s, 3p', (3) Is', 2s, 2p", 3s', 3p, (4) Is, 2s, 2p, 3s°, 3p, 18. S-I: The negative ion is always larger than its, A, potentials (in KJ.mot') of A, B and C?, 1) A>B>C, 3) В > С >А, 24. The first L.P. values in electron volts of, ro, 2) C>B>A, 4) С > А>С, ic X r, M' is, nitrogen and oxygen atoms are, respectively given by, 1) 14.6 13.6, 3) 13.6, 13.6, atom, er of Mi, S-II: As the number of electrons increases, the, nuclear charge per electron is reduced, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 19. S-I:The size decreases in the order, O>Mg> AP, S-II: In isoelectronic ions, the size decreases, with increase in atomic number, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 20. S-1:The ionic size of Mg is larger than AP", S-II: In isoelectronic species, greater the, nuclear charge, less is the size, 2) 13.6, 14.6, 4) 14.6, 14.6, 25. M Mete,AH =100eV, (e), M M+2e",AH 250eV, ->, (g), which is incorrect statement?, 1)1, of M is 100 eV 2)1, of M is 150 eV, 3)/, of M is 250 eV 4)1, of M is 150 eV, 26. (IE), and (IE), of Mg are 740, 1540 kJ, mot', Calculate percentage of Mg and, Mg if Ig of Mg absorbs 50.0 kJ of, ) 25, generally, filled &, energy., 1) %Mg 50 and %Mg 50, 2) %Mg", 3) %Mg-75 and %Mg 25, 4) %Mg -60 and %Mg 40, 70.13 and %Mg 2=29.87, NARAYANA GROUP

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for Teed s, Tert sty, toroiment, 17, CLASSIFICATION O, ) Both I and II a, 2) Both I and II a, 3) I is correct and, 4) I is incorrect a, CHEMISTRY NEET -VOL, CLASSIFICATION OF ELEMENTS AND PERIODICITY, greater than that of 'N, S-II: The half filled p-orbitals cause greater, stability, 1) Both I and Il are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 28. S-I: Shielding effect increases as we go down, the group, S-II: With an increase in the number of, indirectly by, 1) Electric discharge method, 2) Bom-Haber cycle method, 3) Electron microscopic method, 4) Mulliken oil drop method, 34. For univalent elements, the average valu, of first ionization potential and first electro, affinity is equal to its, 1) Polarising power, 3) Electronegativity, 35. Which of the following processes involves, absorption of energy?, (1) Cl+e CI, 41. S-I: The second el, endothermic., S-II: Oxygen, electronegative eles, 1) Both I and II s, 2) Both I and II a, 3) I is correct an, 4) I is incorrect a, VALENCY AND, & NATURE OE, REL, 2) Covalent radius, 4) Dipole moment, ekectrons, in the penultimate shell, more is the shiekling, effect., 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 29. S-I:The first ionisation energy of B is less than, that of Be, (2) O +eo, (4) S+eS, (3) 0+e O, 36. Electronic configurations of four elements, A, B, C and D are given below, (A) 1s 2s 2p, (C) Is 2s' 2p 3s' (D) 1s' 2s' 2p, Which of the following is the correct order, of increasing tendency to gain electron, (1)A<C<B<D, (3)A<D<C<B (4)A<D<B<C, 37. Regarding electron affinity, the wrong, 42 In which group a., (B) Is 2s 2p, same number of, 2) Fim, S-II: The penetration ability of s- ekectrons is, higher than that of p-clectrons the correct, answer is, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 30. S-1: konisation potential of N' is greater than 'O, S-II: Nitrogen has 5 unpaired electrons, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 1) Zero, 43 Among a) Na ,0., e) C1,0, the mo, amphoteric oxid, 1) a, b, c 2) b,, 44. Beryllium shows, aluminium. Whi, is incorrect?, 1) Be,C like, hydrolysis, 2) Be, like Al is r, 3) Be (OH), like., 4) Be forms beryl, 45. An atom of ar, (2) A<B<C< D, statement is, I) The E.A. ofCr" is more than that of "F", 2) The E.A. of "S" is more than that of "P", 3) The E.A. of Sr" is more than that of "C", 4) The E.A. of"Ne" is more than that of "F", 38. An element "X" has IP-1681 kJ/mole and, EA =-333 kJ/mole then its electronegativity is, 1681+333, 1), 1681-333, 2), configuration 2,, statement is com, (1) The element', (2) The clement e, (3) The element i, (4) The element, 46. The outermost, 544, ELECTRON AFFINITY &, ELECTRO NEGATIVITY, 31. The first ionization enthalpy of Na is 5.1, eV. The value of electron gain enthalpy of 39. The electron affinity of chlorine is 3.7 e, Na will be, (1)+2.55 eV, (3)-5.1 eV, 32. The correct order of relative basic, character of NAOH, Mg(OH), and, Al(OH), is-, (1) AKOH),> Mg(OH), > NAOH, (2) Mg(OH), NaOH> Al(OH),, (3) NAOH>Mg(OH), > Al(OH),, (4) Al(OH), > NaOH < Mg(OH),, 544, 1681+333, 3), 0.208 1681+333, 544, how much energy in K cals is released when, 2gm of chlorine is completely convered t, cr ion in a gaseous state (le.v, 23.06kcal mole), I) 4.8Kcal, (2)-2.55 eV, (4)-10.2 eV, most electropos, 1) ns', 2) 2.4Kcal, 4) 14.2Kcal, 2) n., 47. Pair of ions wit, 3) 10.2Kcal, 40. S-I: Electron affinity of Flourine is less than th, of chlorine, S-II: Chlorine can accommodate an electr, by utilising vacant 3d-orbitals, 1) Li", Mg, 3) Mg, Ca, 48. S-I: Be and Al ha, S-II:Cations ofE, power, 104, NARAYANA GROUP

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configurations in the outermost shell i, Which of the following electronic, CHEMISTRY NEET -VOL, CLASS, 6., 13. S, CLASSIFICATION OF ELEMENTS AND PERIODICITY, 136. Xa = X, -0.208/A, 275+86 2.8, is, characteristic of alkali metals, ) (n-1)s°p'ns°p' 2) (n-1)s°p'd"m¢, 3) (n-1)s p'ns', 137. EN=, 129, 4) ns'np' (n-1)d", 7. The longest and shortest periods are, 4) 1&7, 138. XAS 0.359 +0.744, e, 142. d-block ofOs, Ru show +8 oxidation state, 148. In same period, metals gives basic oxides, and they are at LHS of periodic table, Non 8., metals gives acidic oxide, 150. Diagonal reationship, 153. Li and Mg are diagonally related, EXERCISE-II (C.W), 1)1 & 6 2)2& 6 3)6 & 1, The atomic numbers of elements of second, transition series lie in the range of, 2) 39 to 48, 4) 41 to 50, ATC, 14, 1) 38 to 47, 3) 40 to 49, Which statement is incorrect for the d, 9., block elements, 15., Introduction:, The element which occupies peak of, Lother Meyer Curve is, (1) V, 2. The element cited as an example to prove, the validity of Mendeleev's periodic law is, (1) gemanium, (3) gallium, 3. S-I: According to Mendeleev, periodic, properties of elements is a function of their, atomic masses., 1) Have atomic radii larger than s and p-block, 1., clements, 2) Have high melting points ,boiling points and, tensile strength, 3) Have variable oxidation states, 4) Exhibit catalytic property, 10. Transition elements are placed in the, periodic table between the group, 1) IA and IIA, 3) IIIA and IVA, (2) Se (3) K, (4) La, 16., (2) scandium, (4) all, 17, 2) IIA and IIIA, 4) VII and zero, S-II: Atomic number is equal to number of 11 The frequency of the characterstic X ray, protons, 1) I and II are true., 2) I and II are false., 3) only I is true., 4) only II is true., 4. S-I: Cu paramagnetic, S-II: All the orbitals present in Cu? ion are, doubly occupied, 1) I and II are true., 2) I and II are false., 3) only I is true., 4) only II is true., of K, line of metal target M' is, 2500 sec and the graph between v Vs, z' is as follows, then atomic number of Mis, 15, Y A, OA-1, LONG FORM OF PERIODIC TABLE, 1) 49, 2) 50, 3)51, 4) 25, An element with atomic number 106 has 12. S-I: The transition metal ions are, been discovered recently. Which of the, following electronic configuration will it, generally, paramagnetic in nature, S-II: Metal ions with incompletely filled d-, orbitals are paramagnetic in nature, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., posses, 1) [Rn]Sf*6d°7s' 2) [Rn]5f"6d°7s°, 3) [Rn]5f"6d*7s°, 4) [Rn]5f*6d' 7s°7p'

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T VOL, are obtainer, CLASSIFICATION OF ELEMENTS AND PER, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., 41. S-I: The second electron affinity ofoxygen is, endothermic., S-II: Oxygen is the second highest, electronegative element, 1) Both I and II are correct., 2) Both I and II are incorrect., 3) I is correct and II is incorrect., 4) I is incorrect and II is correct., VALENCY AND OXIDATION STATES, & NATURE OF OXIDES,DIAGONAL, hod, e average value, nd first electr, valent radius, bole moment, cesses involve, +e 0, +e S, f four element, RELATIONSHIP, elow, 2s 2p, 2s 2p, 42 In which group all the elements do not have, same number of valence electrons?, 2) First 3) Second 4) Seventh8, 1) Zero, 43 Among a) Na,O, b) Mg0, c) Al,O, d) P,O,, e) Cl,0, the most basic, most acidic and, amphoteric oxide can be, 1) a, b, c 2) b, e, c 3) a, e, c 4) e, c, a, 44. Beryllium shows diagonal relationship with, aluminium. Which of the following similarity, he correct orde, gain electron, <B<C<D, <D<B<C, ity, the wrong, 1, is incorrect?, han that of "F", an that of "P", han that of "C", than that of"", 1) Be,C like Al,C, yields methane on, hydrolysis, 2) Be, like Al is rendered passive by HNO,, 3) Be (OH), like Al(OH), is basic, 4) Be forms beryllates and Al forms aluminate, 45. An atom of an element has electronic, 181 kJ/mole and, ectronegativit, 2:, configuration 2,8, 1. Which of the following, statement is correct?, (1) The element's valency is 7, (2) The element exists as a diatomic molecule, (3) The element is a non-metallic in nature, (4) The element forms a basic oxide, 46. The outermost electronic configuration of, most electropositive element is, I) ns', 47. Pair of ions with similar polarising power, 1) Li", Mg, 3) Mg, Ca, 48. S-I: Be and Al have similar properties, S-II: Cations of Be and Al have same polarizing 3, power, 681-333, 544, 24, 8V1681+333, ilorine is 3.7el, is released whe, tely convered, state (le., 544, 2) ns'np' 3) ns'np' 4) ns'np, 2) Li", Na", 4) Mg, K, 31, 4Kcal, 1.2Kcal, 35, ne is less than t, Is, NARAYAI, 2,