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Q 1. The following arrangement of elements represents which type of early classification? Sa (Do) Re (Re) Ga (Mi) Ma (Fa) Pa (So) Da (La) Ni (Ti) H Li Be B C N O F Na Mg Al Si P S Cl K Ca Ti Cr Mn Fe Co, Ni Cu  Zn        
Dobereiner's Triad
Newlands Octaves
Mendeleev's Periodic Table
Modern Periodic Table
Q 2. In the Modern Periodic Table, if an element with an atomic number 'X' is an inert gas, then an element with atomic number (X-1) will be placed in
Group 16
Group 18
Group 17
Group 15
Q 3. Most non-metallic among F, Cl, Br, I, and At is
F
At
Cl
I
Q 4. The elements and their atomic numbers are given,A = 6B = 24C = 32D = 49Which of the elements belong to same group?
A, B
A, C
B, C
B, D
Q 5. What was the name given to Eka-silicon after it was discovered?
Gallium
Scandium
Magnesium
Germanium
Q 6. The most distinctive property of the noble gases is that they are
Metallic
Metalloid
Radioactive
Unreactive
Q 7. Which of the following triads is a Dobereiner's Triad?
Na, Ra, Al
S, O, H
Li, Na, K
N, P, As
Q 8. After which element does every eighth element not possess properties similar to those of the first element?
Calcium
Sodium
Magnesium
Aluminium
Q 9. The metallic character of elements across the period from left to right
Increases
Decreases
Remains constant
First decreases than increases
Q 10. Mendeleev's classification was based on
Decreasing atomic number
Decreasing atomic mass
Increasing atomic number
Increasing atomic mass
Q 11. The Modern Periodic table was given by
Mendeleev
Moseley
Bohr
Newland
Q 12. Which among the following formulae of elements was used by Mendeleev for giving the classification?
Sulphides
Nitrides
Carbonate
Oxides
Q 13. Elements of Group 16 have 6 valence electrons. The valency of Group 16 elements is
2
6
3
5
Q 14. How many elements did Mendeleev's periodic table contain?
17
58
63
118
Q 15. How many elements were known when Mendeleev started his work on his periodic table?
55
63
45
69
Q 16. Which law states that the properties of the elements are a periodic function of their atomic masses?
Dobereiner's Law
Newland's Law
Mendeleev's Periodic Law
Modern periodic law
Q 17. Out of Li, Na, K and Mg the most reactive metal is
Li
Na
K
Mg
Q 18. Dobereiner's triad arranged the elements with similar properties into
Periods
Groups
Both periods and groups
None of these
Q 19. In a group, the atomic size
Decreases from top to bottom
Increases from top to bottom 
Remains same
First decreases then increases
Q 20. Choose the incorrect statement in view of Mendeleev's periodic table.
Atomic masses were not strictly followed.
Isotopes of elements were placed at same position.
Position of hydrogen was clear.
Elements were arranged in order of their atomic masses.
Q 21. The modern periodic table contains
15 groups
18 groups
16 groups
17 groups
Q 22. An element 'Z' has the electronic configuration 2, 8. Name the element 'Z' and determine its atomic number.
Neon, 10
Argon, 10
Neon, 8
Helium,10
Q 23. On the basis of their position in the periodic table, maximum metallic character is present in which element?
Ga
Ge
As
Se
Q 24. If an element with atomic number 'X' is an inert gas, then in which group would you like to place an element with atomic number (X + 1) in the Modern Periodic Table.
Group 2
Group 1
Group 3
Group 4
Q 25. An element having electronic configuration 2, 8, 18, 3 belongs to which group of the Modern Periodic Table?
  • 13th group
  • 3rd group
  • 18th group
  • 15th group
Q 26. Newlands classification of elements did not include
Metals
Noble gases
Non-metals
Metalloids
Q 27. The Law of Octaves was applicable only upto element
Sodium
Copper
Calcium
Zinc
Q 28. Element X forms a chloride with the formula XCl2, which is a solid with high melting point. X would most likely be
Na
Al
Mg
Si
Q 29. How many triads could Dobereiner identify from the elements known at that time?
2
4
3
5
Q 30. The non-metals are present
On the left hand side of the periodic table.
On the right hand side of the periodic table.
In the middle of the periodic table.
In the centre of the periodic table.

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