periodic properties(gych)

7/29/2019 Periodic Properties(GYCH)

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ANDHERI / VILEPARLE / DADAR/CHEMBUR/THANE/CHURCHGATE/NERUL, Tel: 2624 5209/ 2624 5223

PERIODIC PROPERTIES TEST

1. Which electronic configurations represent to a transition element?

(A) 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p6 (B) 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p1

(C) 1s2, 2s2 2p6, 3s2 3p6 3d2, 4s2 (D) 1s2, 2s2 2p6, 3s2 3p6, 4s2

2. An element having electronic configuration 1s2 2s2 2p6 3s2 3p1 is:(A) An inert gas (B) A transition element

(C) A inner transition element (D) A respesentative element

3. For the element (X), student (A) measured its radius as 102 nm, student (B) as 103 nm and (C) as 100 nmusing same apparatus. Their teacher explained that measurements were correct by saying that recorded

values by (A), (B) and (C) are :(A) crystal, van der Waal and covalent radii (B) covalent, crystal and van der Waal radii

(C) van der Waal, ionic and covalent (D) none is correct

4. Element with electronic configuration 1s2, 2s2 sp6, 3s2 3p6 3d10, 4s2 4p6 4d10, 5s25p3 belongs to the .............group of the periodic table:

(A) 3rd (B) 15th (C) 17th (D) 2nd

5. The order of decrease in atomic radii for Be, Na and Mg is:(A) Na > Mg > Be (B) Mg > Na > Be (C) Be > Na > Mg (D) Be > Mg > Na

6. The ionic radii of N3, O2and Fare respectively given by:(A) 1.36, 1.40, 1.71 (B) 1.36, 1.71, 1.40 (C) 1.71, 1.40, 1.36 (D) 1.71, 1.36, 1.40

7. Which is correct order of size of O, O

2, F

and F?

(A) O2> O> F> F (B) O> O2> F > F

(C) O2> F> F > O (D) O2> F> O> F

8. Which metal exhibits variable oxidation state?

(A) Na (B) Mg (C) Fe (D) Al

9. A, B and C are hydroxy compounds of the elements X, Y and Z respectively. X, Y and Z are in the same

period of periodic table. A gives an aqueous solution of pH less than 7. B reacts with both strong acid andstrong base. C gives an aqueous solution which is strongly basic. Which of the following statements is/aretrue?(I) The three elements are non-metal

(II) The electronegativities decrease from X to Y to Z.(III) The atomic radius decreases in the order Z > Y > X(IV) X, Y and Z may be phosphorous, aluminium and potassium respectively.(A) I, II, III only correct (B) I, III only correct

(C) II, IV only correct (D) II, III only correct

10. Element X, Y and Z have atomic numbers 19, 37 and 55 respectively Which of the following statements is true

(A) Their ionisation potential would increase with the increasing atomic number

(B) 'Y' would have an ionisation potential in between those of 'X' and 'Z'(C) 'Z' would have the highest ionisation potential

(D) 'Y' would have the highest ionisation potential


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11. Arrange the elements with the following electronic configurations in increasing order of electron affinity

i. 1s22s22p5 ii.1s22s22p4 iii.1s22s22p3 iv.1s22s22p63s23p4

(A) i ii iii iv (B) iv iii ii I (C) iii ii iv i (D) ii iii i iv

12. The size of species I, I+ and Idecreases in the order

(A) I+

> I

> I (B) I

> I > I+

(C) I

> I+

> I (D) I> I+

> I

13. The outermost electronic configuration of most electronegative element is(A) ns2np3 (B) ns2np4 (C) ns2np5 (D) ns2np6

14. The first ionization energy in electron volts of Nitrogen and Oxygen atoms are respectively given by

(a) 14.6, 13.6 (B) 13.6, 14.6 (C) 13.6, 13.6 (D) 14.6, 14.6

15. Which of the following statement is incorrect?

(A)There are eight elements in the third period of the periodic table.

(B)Elements of group 1, 2, 13, 14, 15, 16, 17 are known as representative elements.(C)General electronic configuration of f-block elements is (n-2)f1-14(n-1)d0-1ns2

(D)Among all the elements chlorine has the highest electronegativity.

16. In which of the following pairs is the second atom larger the first?(A) Br,Cl (B) Na, Mg (C) Sr,Ca (C) N,P

17. IP1 and IP2 of Mg are 178 and 348 kcal mole1

. The energy required for the reaction Mg Mg2+ + 2eis(A) +170 kcal (B) +526 kcal (C) 170 kcal (D) 526 kcal

18. Which of the series of elements listed below would have nearly the same atomic radii?

(A) F,Cl,Br,I (B) Na,K,Rb,Cs (C) Li,Be,B,C (D) Fe,Co,Ni,Cu

19. The IP1, IP2, IP3, IP4 and IP5 of an element are 7.1, 14.3, 34.5, 46.8, 162.2 eV respectively. The element is

likely to be(A) Na (B) Si (C) F (D) Ca

20. Which of the following is largest?(A) Cl (B) S2 (C) Na+ (D) F

21. Cation which has highest hydration energy

(A) Li+

(B) Na+

(C) K+

(D) Cs+

22. Identify the least stable ion amongst the following

(A) Li- (B) Be- (C) B- (D) C-

23. The correct order of radii is

(A) N


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27. The first Ionization potential of Na, Mg, Al & Si are in the order(A) Na < Mg > Al < Si (B) Na > Mg > Al > Si(C) Na < Mg Si (D) Na > Mg > Al < Si

28. The electronegativity of the following elements increases in the order(A) C, N, Si, P (B) N, Si., C, P(C) Si, P, C, N (D) P, Si, N, C

29. The stability of dihalides of Si, Ge, Sn and Pb increases steadily in the sequence(A) PbX2


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(A) P (B) Q (C)R (D) S

36. Which of the elements is likely to be reactive non-metal?(A) P (B) Q (C)R (D) S

37. Which represents a noble gas?(A) P (B) Q (C)R (D) S

38. Which of the above elements forms a stable binary halide of the formulaMX2 ?(A) P (B) Q (C)R (D) S

C3942 : Paragraph for Questions Nos. 39 to 42Elements with their electronic configurations are given below:

I : 22 21 ss II : 622 221 pss III :2622 3221 spss IV :

322 221 pss V :522 221 pss

39. The element with highest I.E is:

(A) I (B) III (C) II (D) V

40. The element with lowest electron gain enthalpy is:(A) I (B) II (C) III (D) IV

41. The most ionic compound will be formed between:

(A) I and IV (B) I and V (C) III and IV (D) III and V

42. Which of the following is the correct order of increasing size?

(A) I < III < IV < V (B) V < IV < III < I (C) I < IV < V < III (D) V < IV < I < III

From Q43 to Q52, use the symbols given at appropriate position in Periodic Table

43. Which one has smallest atomic size?(A)X

+(B) Y

2+(C) Z

+(D) E

2+

44. Which one has zero electron affinity?

(A)X (B) Y

(C) P (D) Q

45. Which one has highest IE2?(A)K (B) L (C) M (D) N

46. Out of the following, which one can haveIE1, IE2, and IE3 as 50 kJ, 1500kJ and 1600kJ respectively?

(A)X (B) Y (C) K (D) L

47. Out of the following, which one has highest number of unpaired electrons?

(A) (B) (C) (D)

48. What is possible atomic number ofT?(A) 103 (B) 61 (C) 62 (D) 104

49. Which element is the result of given radioactive decay,4 02 1C

?

(A) A (B) B (C) D (D) S

50. Which element has exceptional electronic configuration to Aufbau principle?

(a) K (B) V (C) (D) A

51. The magnetic moment of isolated3+ ion is

X Y K L M N P

Z E Q

RV

A B C D S

T

F


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(a) 3 BM (B) 8 BM (C) 15BM (D) 24BM

52. Actual symbol of element F(a) Ce (B) Lu (C) Th (D) Ac

From Q53 to Q56, read the given Science Friction and answer the following questions

In 2050 AD, there is an attack of aliens on earth from outer galaxy. One of the bullets which comes from the space

ship of the aliens is analyzed by NASA scientists to form bullet proof space jacket. But some unknown element is

found and its properties are different from any element discovered till that date. Some of its properties are given

below:

1. Corresponds to last electron of electronic configuration found to be independent of and.

2. In total it consist 60 electrons with spin quantum number as 1

2 in its ground state.

3.

Magnetic moment of its di positive isolated ion found to be 1.73 BM

Depending on the placement of this new element in the modern periodic table, scientist can predict its properties; sincethey have to be similar with other elements of same group of periodic table.

53. The unknown element should belong to(A) s-block (B) p-block (C) d-block (D) f-block

54. Most probably its atomic number will be(A) 121 (B) 122 (C) 119 (D) 120

55. What should be its symbol according to IUPAC?(A) Ubu (B) Ubb (C) Uue (D) Ubn

56. The unknown element should belong to(A) 1st Group (B) 2ndGroup (C) 3rdGroup (D) 16th Group

From Q57 to Q60, read the given comprehension regarding Inert pair effect and answer the following

In the case of p-block element, the electronic configuration of outermost shell is ns2np1-6. The electrons present in

outermost shell are attracted by nucleus and repelled by electrons present in inner orbitals, it is known as shieldingeffect. But it is relatively more difficult to remove the electron from s-orbital in comparison of p-orbital as we move

from top to bottom along the group due to poor shielding effect of d- and f-orbitls. The two electrons present in s-orbitals are known as inert pair.

57. Out of the following which one best reducing agent?(A) CO (B) SiO (C) PbO (D) GeO

58. Out of the following which one most unstable?(A) PbF4 (B) PbCl4 (C) PbBr4 (D) PbI4

59. TlI3, Thalium iodide as a electrolyte dissociate into

(A) Tl3+

+ 3I

(B) Tl+

+ I3

(C) TlI2+

+ I

(D) None of these

60. The stability order of + 3 in Group 13 elements is

(A) Ga3+

< In3+

< Tl3+

(B) Ga3+

> In3+

> Tl3+

(C) Ga3+ > In3+ < Tl3+ (D) none of the above


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PERIODIC PROPERTIES TEST

NAME:________________________________________________DATE:____________________

1. DCBA 21. DCBA 41. DCBA 2. DCBA 22. DCBA 42. DCBA 3. DCBA 23. DCBA 43. DCBA 4. DCBA 24. DCBA 44. DCBA 5. DCBA 25. DCBA 45. DCBA 6. DCBA 26. DCBA 46. DCBA 7. DCBA 27. DCBA 47. DCBA 8. DCBA 28. DCBA 48. DCBA 9. DCBA 29. DCBA 49. DCBA 10. DCBA 30. DCBA 50. DCBA 11. DCBA 31. DCBA 51. DCBA 12. DCBA 32. DCBA 52. DCBA 13. DCBA 33. DCBA 53. DCBA 14. DCBA 34. DCBA 54. DCBA 15. DCBA 35. DCBA 55. DCBA 16. DCBA 36. DCBA 56. DCBA 17. DCBA 37. DCBA 57. DCBA 18. DCBA 38. DCBA 58. DCBA 19. DCBA 39. DCBA 59. DCBA 20. DCBA 40. DCBA 60. DCBA

periodic properties(gych)

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