CHEMISTRY- JEE ENTRANCE TEST SERIES

Chapter Wise JEE Entrance Practice Test Series

Chemical Bonding and Molecular Structure

1 Quiz

Chemical Bonding and Molecular Structure Quiz-1

Structure Of Atom

1 Quiz

Structure of Atom Quiz-1

Classification of Elements and Periodicity in Properties

1 Quiz

Classification of elements and Periodicity Quiz-1

1 Quiz

Thermodynamics Quiz-1

Redox Reactions

1 Quiz

Redox Reactions Quiz-1

Classification of elements and Periodicity Quiz-1

CHEMISTRY- JEE ENTRANCE TEST SERIES Classification of Elements and Periodicity in Properties Classification of elements and Periodicity Quiz-1

Multiple Choice Questions with one Correct Answer

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Question 1 of 50

1. Question
1 point(s)
The atomic number of the element unnilennium is :
- 109
- 102
- 108
- 119
Correct

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Question 2 of 50

2. Question
1 point(s)
The group number, number of valence electrons, and valency of an element with atomic number 15 , respectively, are :
- 16, 5 and 2
- 15, 5 and 3
- 16, 6 and 3
- 15, 6 and 2
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Question 3 of 50

3. Question
1 point(s)
The element with \(Z=120\) (not yet discovered) will be an/a:
- Inner-transition metal
- Alkaline earth metal
- Alkali metal
- Transition metal
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Question 4 of 50

4. Question
1 point(s)
Similarity in chemical properties of the atoms of elements in a group of the periodic table is most closely related to:
- atomic numbers
- atomic masses
- number of principal energy levels
- number of valence electrons
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Question 5 of 50

5. Question
1 point(s)
Which of the following has the maximum number of unpaired electrons?
- \(\mathrm{Mg}^{2+}\)
- \(\mathrm{Ti}^{3+}\)
- \(\mathrm{V}^{3+}\)
- \(\mathrm{Fe}^{2+}\)
Correct

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Question 6 of 50

6. Question
1 point(s)
The statement that is not correct for the periodic classification of element is
- The properties of elements are the periodic functions of their atomic numbers
- Non-metallic elements are lesser in number than metallic elements
- The first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number
- For transition elements the \(d\)-subshells are filled with electrons monotonically with increase in atomic number.
Correct

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Question 7 of 50

7. Question
1 point(s)
The atomic number of Unnilunium is _____?
- 100
- 101
- 102
- 104
Correct

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Question 8 of 50

8. Question
1 point(s)
The set that contains atomic numbers of only transition elements, is :
- 37, 42, 50, 64
- 21, 25, 42, 72
- 9, 17, 34, 38
- 21, 32, 53, 64
Correct

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Question 9 of 50

9. Question
1 point(s)
The correct order of the ionic radii of \(\mathrm{O}^{2-}, \mathrm{N}^{3-}, \mathrm{F}^{-}, \mathrm{Mg}^{2+}, \mathrm{Na}^{+}\)and \(\mathrm{Al}^{3+}\) is:
- \(\mathrm{N}^{3-} \lt \mathrm{O}^{2-} \lt \mathrm{F}^{-} \lt \mathrm{Na}^{+} \lt \mathrm{Mg}^{2+} \lt \mathrm{Al}^{3+}\)
- \(\mathrm{Al}^{3+} \lt \mathrm{Na}^{+} \lt \mathrm{Mg}^{2+} \lt \mathrm{O}^{2-} \lt \mathrm{F}^{-} \lt \mathrm{N}^{3-}\)
- \(\mathrm{Al}^{3+} \lt \mathrm{Mg}^{2+} \lt \mathrm{Na}^{+} \lt \mathrm{F}^{-} \lt \mathrm{O}^{2-} \lt \mathrm{N}^{3-}\)
- \(\mathrm{N}^{3-} \lt \mathrm{F}^{-} \lt \mathrm{O}^{2-} \lt \mathrm{Mg}^{2+} \lt \mathrm{Na}^{+} \lt \mathrm{Al}^{3+}\)
Correct

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Question 10 of 50

10. Question
1 point(s)
The elements with atomic numbers 101 and 104 belong to, respectively:
- Group 11 and Group 4
- Actinoids and Group 6
- Actinoids and Group 4
- Group 6 and Actinoids
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Question 11 of 50

11. Question
1 point(s)
The process that is NOT endothermic in nature is :
- \(\operatorname{Ar}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{Ar}^{-}\)(g)
- \(\mathrm{H}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{H}^{-}(\mathrm{g})\)
- \( \mathrm{O}^{-}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{O}^{2-}(\mathrm{g}) \)
- \( \mathrm{Na}(\mathrm{g}) \rightarrow \mathrm{Na}^{+}(\mathrm{g})+\mathrm{e}^{-} \)
Correct

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Question 12 of 50

12. Question
1 point(s)
The ionic radii of \(\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}^{+}\)and \(\mathrm{Mg}^{2+}\) are in the order:
- \(\mathrm{F}^{-}>\mathrm{O}^{2-}>\mathrm{Na}^{+}>\mathrm{Mg}^{2+}\)
- \(\mathrm{O}^{2-}>\mathrm{F}^{-}>\mathrm{Na}^{+}>\mathrm{Mg}^{2+}\)
- \(\mathrm{Mg}^{2+}>\mathrm{Na}^{+}>\mathrm{F}^{-}>\mathrm{O}^{2-}\)
- \(\mathrm{O}^{2-}>\mathrm{F}^{-}>\mathrm{Mg}^{2+}>\mathrm{Na}^{+}\)
Correct

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Question 13 of 50

13. Question
1 point(s)
Among the statements (I – IV), the correct ones are :
(I) Be has smaller atomic radius compared to \(\mathrm{Mg}\).
(II) Be has higher ionization enthalpy than \(\mathrm{Al}\).
(III) Charge/radius ratio of \(\mathrm{Be}\) is greater than that of \(\mathrm{Al}\).
(IV) Both \(\mathrm{Be}\) and \(\mathrm{Al}\) form mainly covalent compounds.
- (I), (II) and (IV)
- (I), (III) and (IV)
- (II), (III) and (IV)
- (I), (II) and (III)
Correct

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Question 14 of 50

14. Question
1 point(s)
The five successive ionization enthalpies of an element are 800,2427 , 3658,25024 and \(32824 \mathrm{~kJ} \mathrm{~mol}^{-1}\). The number of valence electrons in the element is :
- 5
- 4
- 3
- 2
Correct

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Question 15 of 50

15. Question
1 point(s)
In general, the property (magnitudes only) that shows an opposite trend in comparison to other properties across a period is :
- Ionization enthalpy
- Electronegativity
- Electron gain enthalpy
- Atomic radius
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Question 16 of 50

16. Question
1 point(s)
Three elements \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\) are in the \(3^{\text {rd }}\) period of the periodic table. The oxides of \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\), respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of \(\mathrm{X}, \mathrm{Y}\) and \(\mathrm{Z}\) is :
- Z \( \lt \) Y \( \lt \) X
- X \( \lt \) Y \( \lt \) Z
- \({X} \lt \) Z \( \lt \) Y
- Y \( \lt \) X \( \lt \) Z
Correct

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Question 17 of 50

17. Question
1 point(s)
\(\mathrm{B}\) has a smaller first ionization enthalpy than \(\mathrm{Be}\). Consider the following statements:
(I) it is easier to remove \(2 p\) electron than \(2 s\) electron
(II) \(2 p\) electron of \(\mathrm{B}\) is more shielded from the nucleus by the inner core of electrons than the \(2 s\) electrons of \(\mathrm{Be}\)
(III) \(2 s\) electron has more penetration power than \(2 p\) electron
(IV) atomic radius of \(\mathrm{B}\) is more than \(\mathrm{Be}\) (atomic number \(\mathrm{B}=5, \mathrm{Be}=4\) )
The correct statements are:
- (I), (II) and (IV)
- (II), (III) and (IV)
- (I), (II) and (III)
- (I), (III) and (IV)
Correct

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Question 18 of 50

18. Question
1 point(s)
The acidic, basic and amphoteric oxides, respectively, are:
- \(\mathrm{Na}_2 \mathrm{O}, \mathrm{SO}_3, \mathrm{Al}_2 \mathrm{O}_3\)
- \(\mathrm{Cl}_2 \mathrm{O}, \mathrm{CaO}, \mathrm{P}_4 \mathrm{O}_{10}\)
- \(\mathrm{N}_2 \mathrm{O}_3, \mathrm{Li}_2 \mathrm{O}, \mathrm{Al}_2 \mathrm{O}_3\)
- \(\mathrm{MgO}, \mathrm{Cl}_2 \mathrm{O}, \mathrm{Al}_2 \mathrm{O}_3\)
Correct

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Question 19 of 50

19. Question
1 point(s)
The first and second ionisation enthalpies of a metal are 496 and 4560 \(\mathrm{kJ} \mathrm{mol}{ }^{-1}\), respectively. How many moles of \(\mathrm{HCl}\) and \(\mathrm{H}_2 \mathrm{SO}_4\), respectively, will be needed to react completely with 1 mole of the metal hydroxide?
- 1 and 1
- 2 and 0.5
- 1 and 2
- 1 and 0.5
Correct

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Question 20 of 50

20. Question
1 point(s)
The first ionization energy (in \(\mathrm{kJ} / \mathrm{mol}\) ) of \(\mathrm{Na}, \mathrm{Mg}, \mathrm{Al}\) and \(\mathrm{Si}\) respectively, are:
- \(496,737,577,786\)
- \(496,577,737,786\)
- \(786,737,577,496\)
- \(496,577,786,737\)
Correct

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Question 21 of 50

21. Question
1 point(s)
The increasing order of the atomic radii of the following elements is:

(i) \(\mathrm{C}\)
(ii) \(\mathrm{O}\)
(iii) \(\mathrm{F}\)
(iv) \(\mathrm{Cl}\)
(v) \(\mathrm{Br}\)
- (ii) \( \lt \) (iii) \( \lt \) (iv) \( \lt \) (i) \( \lt \) (v)
- (iv) \( \lt \) (iii) \( \lt \) (ii) \( \lt \) (i) \( \lt \) (v)
- (iii) \( \lt \) (ii) \( \lt \) (i) \( \lt \) (iv) \( \lt \) (v)
- (i) \( \lt \) (ii) \( \lt \) (iii) \( \lt \) (iv) \( \lt \) (v)
Correct

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Question 22 of 50

22. Question
1 point(s)
The electron gain enthalpy (in \(\mathrm{kJ} / \mathrm{mol}\) ) of fluorine, chlorine, bromine and iodine, respectively, are:
- \(-296,-325,-333\) and -349
- \(-349,-333,-325\) and -296
- \(-333,-349,-325\) and -296
- \(-333,-325,-349\) and -296
Correct

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Question 23 of 50

23. Question
1 point(s)
Within each pair of elements \(\mathrm{F~} \& \mathrm{~Cl}, \mathrm{S~} \& \mathrm{~Se}\), and \(\mathrm{Li~} \& \mathrm{~Na}\), respectively, the elements that release more energy upon an electron gain are:
- \(\mathrm{Cl}\), Se and \(\mathrm{Na}\)
- \(\mathrm{Cl}, \mathrm{S}\) and \(\mathrm{Li}\)
- F, S and Li
- F, Se and \(\mathrm{Na}\)
Correct

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Question 24 of 50

24. Question
1 point(s)
In comparison to boron, berylium has:
- lesser nuclear charge and lesser first ionisation enthalpy.
- greater nuclear charge and lesser first ionisation enthalpy.
- greater nulear charge and greater first ionisation enthalpy.
- lesser nuclear charge and greater first ionisation enthalpy.
Correct

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Question 25 of 50

25. Question
1 point(s)
The correct order of the atomic radii of \(\mathrm{C}, \mathrm{Cs}, \mathrm{Al}\), and \(\mathrm{S}\) is :
- C \( \lt \) S \( \lt \) Al \( \lt \mathrm{Cs}\)
- \(\mathrm{S} \lt \mathrm{C} \lt \mathrm{Cs} \lt \mathrm{Al}\)
- S \( \lt \) C \( \lt \mathrm{Al} \lt \mathrm{Cs}\)
- C \( \lt \) S \( \lt \) Cs \( \lt \mathrm{Al}\)
Correct

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Question 26 of 50

26. Question
1 point(s)
The correct option with respect to the Pauling electronegativity values of the elements is:
- \(\mathrm{Te}>\mathrm{Se}\)
- \(\mathrm{Ga} \lt \mathrm{Ge}\)
- \(\mathrm{Si} \lt \mathrm{Al}\)
- \(\mathrm{P}>\mathrm{S}\)
Correct

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Question 27 of 50

27. Question
1 point(s)
The \(71^{\text {st }}\) electron of an element \(\mathrm{X}\) with an atomic number of 71 enters into the orbital:
- \(6 p\)
- \(4 f\)
- \(5 d\)
- \(5 s\)
Correct

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Question 28 of 50

28. Question
1 point(s)
In general, the properties that decrease and increase down a group in the periodic table, respectively, are:
- atomic radius and electronegativity.
- electron gain enthalpy and electronegativity.
- electronegativity and atomic radius.
- electronegativity and electron gain enthalpy.
Correct

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Question 29 of 50

29. Question
1 point(s)
The correct order of electron affinity is:
- O \(>\mathrm{F}>\mathrm{Cl}\)
- \(\mathrm{F}>\mathrm{O}>\mathrm{Cl}\)
- \(\mathrm{F}>\mathrm{Cl}>\mathrm{O}\)
- Cl \(>\) F \(>\) O
Correct

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Question 30 of 50

30. Question
1 point(s)
Both lithium and magnesium display several similar properties due to the diagonal relationship; however, the one which is incorrect is :
- Both form basic carbonates
- Both form soluble bicarbonates
- Both form nitrides
- Nitrates of both \(\mathrm{Li}\) and \(\mathrm{Mg}\) yield \(\mathrm{NO}_2\) and \(\mathrm{O}_2\) on heating
Correct

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Question 31 of 50

31. Question
1 point(s)
The group having isoelectronic species is:
- \(\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}\)
- \(\mathrm{O}^{-}, \mathrm{F}^{-}, \mathrm{Na}, \mathrm{Mg}^{+}\)
- \(\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}, \mathrm{Mg}^{2+}\)
- \(\mathrm{O}^{-}, \mathrm{F}^{-}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}\)
Correct

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Question 32 of 50

32. Question
1 point(s)
Consider the following ionization enthalpies of two elements ‘A’ and ‘B’.

Which of the following statements is correct?
- Both 'A' and ' B ' belong to group-1 where ' B ' comes below ' A '.
- Both 'A' and ' B ' belong to group-1 where ' A ' comes below ' B '.
- Both 'A' and ' B ' belong to group-2 where ' B ' comes below ' A '.
- Both 'A' and 'B' belong to group-2 where 'A' comes below ' B '.
Correct

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Question 33 of 50

33. Question
1 point(s)
Which of the following atoms has the highest first ionization energy?
- \(\mathrm{K}\)
- \(\mathrm{Sc}\)
- \(\mathrm{Rb}\)
- \(\mathrm{Na}\)
Correct

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Question 34 of 50

34. Question
1 point(s)
The following statements concern elements in the periodic table. Which of the following is true?
- For Group 15 elements, the stability of +5 oxidation state increases down the group
- Elements of Group 16 have lower ionization enthalpy values compared to those of Group 15 in the corresponding periods.
- The Group 13 elements are all metals.
- All the elements in Group 17 are gases.
Correct

Incorrect
Question 35 of 50

35. Question
1 point(s)
The ionic radii (in Å) of \(\mathrm{N}^{3-}, \mathrm{O}^{2-}\) and \(\mathrm{F}^{-}\)are respectively:
- 1.71,1.40 and 1.36
- 1.71,1.36 and 1.40
- 1.36,1.40 and 1.71
- 1.36,1.71 and 1.40
Correct

Incorrect
Question 36 of 50

36. Question
1 point(s)
In the long form of the periodic table, the valence shell electronic configuration of \(5 s^2 5 p^4\) corresponds to the element present in :
- Group 16 and period 6
- Group 17 and period 6
- Group 16 and period 5
- Group 17 and period 5
Correct

Incorrect
Question 37 of 50

37. Question
1 point(s)
Which of the following series correctly represents relations between the elements from \(\mathrm{X}\) to \(\mathrm{Y}\) ?
\(\mathrm{X} \rightarrow \mathrm{Y}\)
- \({ }_3 \mathrm{Li} \rightarrow{ }_{19} \mathrm{~K}\) Ionization enthalpy increases
- \({ }_9 \mathrm{~F} \rightarrow{ }_{35} \mathrm{Br}\) Electron gain enthalpy (negative sign) increases
- \({ }_6 \mathrm{C} \rightarrow{ }_{32} \mathrm{Ge}\) Atomic radii increases
- \({ }_{18} \mathrm{Ar} \rightarrow{ }_{54} \mathrm{Xe}\) Noble character increases
Correct

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Question 38 of 50

38. Question
1 point(s)
Which of the following arrangements represents the increasing order (smallest to largest) of ionic radii of the given species \(\mathrm{O}^{2-}, \mathrm{S}^{2-}, \mathrm{N}^{3-}, \mathrm{P}^{3-}\)?
- \(\mathrm{O}^{2-} \lt \mathrm{N}^{3-} \lt \mathrm{S}^{2-} \lt \mathrm{P}^{3-}\)
- \(\mathrm{O}^{2-} \lt \mathrm{P}^{3-} \lt \mathrm{N}^{3-} \lt \mathrm{S}^{2-}\)
- \(\mathrm{N}^{3-} \lt \mathrm{O}^{2-} \lt \mathrm{P}^{3-} \lt \mathrm{S}^{2-}\)
- \(\mathrm{N}^{3-} \lt \mathrm{S}^{2-} \lt \mathrm{O}^{2-} \lt \mathrm{P}^{3-}\)
Correct

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Question 39 of 50

39. Question
1 point(s)
Which of the following represents the correct order of increasing first ionization enthalpy for \(\mathrm{Ca}, \mathrm{Ba}, \mathrm{S}, \mathrm{Se}\) and \(\mathrm{Ar}\) ?
- \(\mathrm{Ca} \lt \) S \( \lt \mathrm{Ba} \lt \mathrm{Se} \lt \mathrm{Ar}\)
- \(\mathrm{S} \lt \mathrm{Se} \lt \mathrm{Ca} \lt \mathrm{Ba} \lt \mathrm{Ar}\)
- \(\mathrm{Ba} \lt \mathrm{Ca} \lt \mathrm{Se} \lt \mathrm{S} \lt \mathrm{Ar}\)
- \(\mathrm{Ca} \lt \mathrm{Ba} \lt \mathrm{S} \lt \mathrm{Se} \lt \mathrm{Ar}\)
Correct

Incorrect
Question 40 of 50

40. Question
1 point(s)
The order of increasing sizes of atomic radii among the elements \(\mathrm{O}\), \(\mathrm{S}\), Se and As is :
- \(\mathrm{As} \lt \mathrm{S} \lt \mathrm{O} \lt \mathrm{Se}\)
- \( \mathrm{Se} \lt \mathrm{S} \lt \mathrm{As} \lt \mathrm{O} \)
- \( \mathrm{O} \lt \mathrm{S} \lt \mathrm{As} \lt \mathrm{Se} \)
- \( \mathrm{O} \lt \mathrm{S} \lt \mathrm{Se} \lt \mathrm{As} \)
Correct

Incorrect
Question 41 of 50

41. Question
1 point(s)
Identify the correct order of acidic strengths of \(\mathrm{CO}_2, \mathrm{CuO}, \mathrm{CaO}, \mathrm{H}_2 \mathrm{O}\)
- \(\mathrm{CaO} \lt \mathrm{CuO} \lt \mathrm{H}_2 \mathrm{O} \lt \mathrm{CO}_2\)
- \(\mathrm{H}_2 \mathrm{O} \lt \mathrm{CuO} \lt \mathrm{CaO} \lt \mathrm{CO}_2\)
- \(\mathrm{CaO} \lt \mathrm{H}_2 \mathrm{O} \lt \mathrm{CuO} \lt \mathrm{CO}_2\)
- \(\mathrm{H}_2 \mathrm{O} \lt \mathrm{CO}_2 \lt \mathrm{CaO} \lt \mathrm{CuO}\)
Correct

Incorrect
Question 42 of 50

42. Question
1 point(s)
The correct order of radii is
- \(\mathrm{N} \lt \mathrm{Be} \lt \mathrm{B}\)
- \(\mathrm{F}^{-} \lt \mathrm{O}^{2-} \lt \mathrm{N}^{3-}\)
- \(\mathrm{Na} \lt \mathrm{Li} \lt \mathrm{K}\)
- \(\mathrm{Fe}^{3+} \lt \mathrm{Fe}^{2+} \lt \mathrm{Fe}^{4+}\)
Correct

Incorrect
Question 43 of 50

43. Question
1 point(s)
The correct order of acidic strength is
- \(\mathrm{Cl}_2 \mathrm{O}_7>\mathrm{SO}_2>\mathrm{P}_4 \mathrm{O}_{10}\)
- \( \mathrm{CO}_2>\mathrm{N}_2 \mathrm{O}_5>\mathrm{SO}_3 \)
- \( \mathrm{Na}_2 \mathrm{O}>\mathrm{MgO}>\mathrm{Al}_2 \mathrm{O}_3 \)
- \( \mathrm{K}_2 \mathrm{O}>\mathrm{CaO}>\mathrm{MgO} \)
Correct

Incorrect
Question 44 of 50

44. Question
1 point(s)
Amongst \(\mathrm{H}_2 \mathrm{O}, \mathrm{H}_2 \mathrm{~S}, \mathrm{H}_2 \mathrm{Se}\) and \(\mathrm{H}_2 \mathrm{Te}\), the one with the highest boiling point is
- \(\mathrm{H}_2 \mathrm{O}\) because of hydrogen bonding
- \(\mathrm{H}_2 \mathrm{Te}\) because of higher molecular weight
- \(\mathrm{H}_2 \mathrm{~S}\) because of hydrogen bonding
- \(\mathrm{H}_2 \mathrm{Se}\) because of lower molecular weight
Correct

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Question 45 of 50

45. Question
1 point(s)
Which has most stable +2 oxidation state :
- \(\mathrm{Sn}\)
- \(\mathrm{Pb}\)
- \(\mathrm{Fe}\)
- \(\mathrm{Ag}\)
Correct

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Question 46 of 50

46. Question
1 point(s)
Amongst the following elements (whose electronic configurations are given below), the one having the highest ionization energy is :
- \([\mathrm{Ne}] 3 s^2 3 p^1\)
- \([\mathrm{Ne}] 3 s^2 3 p^3\)
- \([\mathrm{Ne}] 3 s^2 3 p^2\)
- \([\mathrm{Ne}] 3 d^{10} 4 s^2 4 p^3\)
Correct

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Question 47 of 50

47. Question
1 point(s)
Which one of the following is the strongest base?
- \(\mathrm{AsH}_3\)
- \(\mathrm{NH}_3\)
- \(\mathrm{PH}_3\)
- \(\mathrm{SbH}_3\)
Correct

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Question 48 of 50

48. Question
1 point(s)
Which one of the following is the smallest in size?
- \(\mathrm{N}^{3-}\)
- \(\mathrm{O}^{2-}\)
- \(\mathrm{F}^{-}\)
- \(\mathrm{Na}^{+}\)
Correct

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Question 49 of 50

49. Question
1 point(s)
The first ionisation potential of \(\mathrm{Na}, \mathrm{Mg}, \mathrm{Al}\) and \(\mathrm{Si}\) are in the order
- \(\mathrm{Na} \lt \mathrm{Mg}>\mathrm{Al} \lt \mathrm{Si}\)
- \(\mathrm{Na}>\mathrm{Mg}>\mathrm{Al}>\mathrm{Si}\)
- \(\mathrm{Na} \lt \mathrm{Mg} \lt \mathrm{Al} \lt \mathrm{Si}\)
- \(\mathrm{Na}>\mathrm{Mg}>\mathrm{Al} \lt \mathrm{Si}\)
Correct

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Question 50 of 50

50. Question
1 point(s)
The electronegativity of the following elements increases in the order
- \(\mathrm{C}, \mathrm{N}, \mathrm{Si}, \mathrm{P}\)
- \(\mathrm{N}, \mathrm{Si}, \mathrm{C}, \mathrm{P}\)
- \(\mathrm{Si}, \mathrm{P}, \mathrm{C}, \mathrm{N}\)
- \( \mathrm{P}, \mathrm{Si}, \mathrm{N}, \mathrm{C} \)
Correct

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