Chemistry Quiz: Periodic Classification Of Elements
.
- 1.
- A.
They are borderline elements that exhibit both metallic and non metallic properties to some extent
- B.
They usually act as electron donors with non-metals and as electron acceptors with metals
- C.
Some of these elements are boron, silicon and germanium
- D.
They are good conductors of heat and electricity
- 2.Arrange the following elements in the order of their increasing nonmetallic character: Li, O, C, Be, F
- A.
F < O < C < Be < Li
- B.
Li < Be < C < O< F
- C.
F < O < C < Be < Li
- D.
F < O < Be < C < Li
- 3.Six elements A, B, C, D, E and F have the following atomic numbers (A = 12, B = 17, C = 18, D = 7, E = 9 and F = 11). Among these elements, the element, which belongs to the 3rd period and has the highest ionization potential, is
- A.
A
- B.
B
- C.
C
- D.
F
- 4.Which of the following are the characteristics of isotopes of an element? i. Isotopes of an element have same atomic masses ii. Isotopes of an element have same atomic number iii. Isotopes of an element show same physical properties iv. Isotopes of an element show same chemical properties
- A.
(i), (iii) and (iv)
- B.
(ii), (iii) and (iv)
- C.
(ii) and (iii)
- D.
(ii) and (iv)
- 5.
![Which one of the following depicts the correct representation of atomic radius(r) of an atom?
- ProProfs]( "Which one of the following depicts the correct representation of atomic radius(r) of an atom?")
Which one of the following depicts the correct representation of atomic radius(r) of an atom?- A.
(i) and (ii)
- B.
(ii) and (iii)
- C.
(iii) and (iv)
- D.
(i) and (iv)
- 6.Which of the following hydroxides is most basic?
- A.
Be(OH)2
- B.
Ba(OH)2
- C.
Ca(OH)2
- D.
Mg(OH)2
- 7.The statement that is not true about electron affinity is
- A.
It causes energy to be released
- B.
It causes energy to be absorbed
- C.
It is expressed in electron volts
- D.
It involves formation of an anion
- 8.Which of the following is Dobereiner’s triad?
- A.
Ne,Ca,Na
- B.
H2,N2, O2
- C.
Li, Na, K
- D.
Na, Br, Ar
- 9.The first ionization energy of an element is 736 kJ per mole of atoms. An atom of this element in the ground state has a total of how many valence electrons?
- A.
1
- B.
2
- C.
3
- D.
4
- 10.Elements in the same vertical group of the periodic table have same
- A.
Atomic number
- B.
Atomic volume
- C.
Number of valence electrons
- D.
Atomic mass
- 11.Which of the following is the correct order of decreasing first ionization energy:
- A.
C > B > Be > Li
- B.
C > Be > B > Li
- C.
B > C > Be > Li
- D.
Be > Li > B > C
- 12.Identify the p-block elements which are not representative elements?
- A.
I-A
- B.
IV-A
- C.
VII-A
- D.
VIII-A
- 13.Which of the following statement (s) about the Modern Periodic Table are incorrect i. The elements in the Modern Periodic Table are arranged on the basis of their decreasing atomic number ii. The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic masses iii. Isotopes are placed in adjoining group (s) in the Periodic Table iv. The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic number
- A.
(i) only
- B.
(i), (ii) and (iii)
- C.
(i), (ii) and (iv)
- D.
(iv) only
- 14.Identify the incorrect statement
- A.
All the metals are good conductor of electricity
- B.
All the metals are good conductor of heat
- C.
All the metals form positive ions
- D.
All the metals form acidic oxides
- 15.For a given value of ‘n’, the ionization energy is highest for:
- A.
D-electrons
- B.
F-electrons
- C.
P-electrons
- D.
S-electrons
.JPG "Which one of the following depicts the correct representation of atomic radius(r) of an atom?")
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