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Class 10 Science
Periodic Classification Of Elements
Quiz 3
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Which of the element whose atomic number is given below cannot accommodate in the present set up of the long form of the periodic table?
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107
0%
118
0%
102
0%
126
Explanation
126
Which of the following properties generally increases on moving from top to bottom?
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Ionization energy
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Valency
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Atomic size
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Non-metallic character
What is the basis of long form of the periodic table?
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Atomic size
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Metallic and Non-metallic character
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Atomic number
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Atomic mass
The law of modern periodic table was proposed by:-
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Dobereincer
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D.I Mendeleev
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Newlands
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H.G.I moselly
Which of the following statement is not correct about the trends when going from left to right across the periodic table?
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The elements become less metallic in nature
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The number of valence electrons increases
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The atoms lose their electrons more easily
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the oxides become more acidic
The least metallic element of group I is:-
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Sodium
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Potassium
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Caesium
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Lithium
The number of periods in the long form of the periodic table is:-
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10
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7
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18
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6
According to IUPAC recommendations, the number of groups in the long form of the periodic table is:-
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7
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16
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8
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18
Which of the following pairs of elements does not belong to same group?
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\(N.\,\,P\)
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\(Al.\,\,Si\)
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\(Cl.\,\,Br\)
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\(Mg.\,\,Ca\)
The law of octaves was proposed by:-
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Dobereiner
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Newlands
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Lother Meyer
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Mendeleev
Which of the following has largest atomic size?
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\(O\)
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\(F\)
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\(Be\)
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\(C\)
Which is not true about the noble gases?
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Xenon is the most reactive among these
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They are non metallic in nature
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They are radioactive in nature
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They exist in atomic form
Which of the following belongs to group 18?
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\(Rb\)
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\(Ar\)
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\(Sr\)
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\(I\)
Which of the following has the lowest number of electrons in the valency shell?
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\(B\)
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\(C\)
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\(O\)
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\(N\)
Which one is more metallic element?
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\(Na\)
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\(Mg\)
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\(Al\)
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\(Si\)
Which of the following sets of elements do not belong to the same group?
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\(C,\,\,Si, \,\,Ge\)
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\(F,\,\,CI,\,\,Br\)
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\(Na, \,\,K,\,\, Rb\)
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\(P, \,\, S,\,\, CI\)
Which of the following has the maximum non-metallic character?
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\(Br\)
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\(Cl\)
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\(I\)
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\(F\)
The valence shell of element A contains 3 electrons while the valence shell of element B contains 6 electrons. If A combines with B, the probable chemical formula of the compound is
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A
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AB
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B
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None of the above
Explanation
A
0 h : 0 m : 1 s
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