Classification of elements multiple choice questions test

 

Science Quiz or multiple choice questions test (Topic : Classification of elements )

Quiz

 

1. What is the Latin name of potassium?
   
   1.   Natrium
   2.   Kalium
   3.   Ferrum
   4.   Aurum
2. Which of the following is the outermost shell for elements of period 2?
   1.   K shell
   2.   L shell
   3.   M shell
   4.   N shell
3. Sodium chloride is formed after the chemical combination of sodium and chlorine. Which of the following is the not a property of this type of compound?
   1.   Good conductor of electricity
   2.   Highly soluble in water but insoluble in organic solvent
   3.   Low melting point
   4.   Mainly found in sold state
4. 5) Match the column-A and column-B on the basis of their relation.
   Column-A Column-B
   i) Electron p) Goldstein
   ii) Proton q) Avogadro
   iii)Neutron r) J.J Jhomson
   iv) Molecule s) Chadwick
   
   1.   i-r, ii-p, iii-s, iv-q
   2.   i-r, ii-p, iii-q, iv-s
   3.   i-r, ii-q, iii-s, iv-p
   4.   i-q, ii-p, iii-s, iv-r
5. Which of the following is odd one on the basis of their number of charge present in radical.
   
   1.   Nitrate radical
   2.   Bicarbonate radical
   3.   Bisulphate radical
   4.   Carbonate radical
6. Which of the following is the molecular formula of Epsom salts?
   
   1.   MgSO4 .7H2O
   2.   Na2SO4.10H2O
   3.   ZnSO4.7H2O
   4.   Na2CO3.10H2O
7. Which of the following is tetravalent element?
   
   1.   Carbon
   2.   Oxygen
   3.   Magnesium
   4.   Nitrogen
8. The arrangement of elements in the Modem Periodic Table is based on their
   1.   increasing atomic mass in the period
   2.   increasing atomic number in the horizontal rows
   3.   increasing atomic number in the vertical columns
   4.   increasing atomic mass in the group
9. Where would you locate the element with electronic configuration 2, 8 in the Modern Periodic Table?
   1.   Group 8
   2.   Group 2
   3.   Group 18
   4.   Group 10
10. Element ‘X’ forms a chloride with the formula XCl2, which is a solid with high melting point. X would most likely be in the same group of the periodic table as:
    1.   Si
    2.   Mg
    3.   Al
    4.   Na
11. Pick out the chemically most reactive elements from the given triads Li, Na, K F, Cl, Br
    1.   Li and F
    2.   Li and Br
    3.   K and F
    4.   K and Br
12. Which of these belong to the same period?
    Elements Atomic number
    A 2
    B 10
    C 5
    1.   A, B
    2.   B, C
    3.   C, A
    4.   A, B and C
13. Which one of the following statements is not correct about the trends in the properties of the elements of a period on going from left to right?
    1.   The oxides become more acidic
    2.   The elements become less metallic
    3.   There is an increase in the number of valence electrons
    4.   The atoms lose their electrons more easily
14. The elements A, B and C belong to groups 1, 14 and 17 respectively of the Periodic Table. Which two elements will form ionic compounds?
    1.   A and B
    2.   A and C
    3.   B and C
    4.   None
15. An element X from group 2 of the Periodic Table reacts with Y from group 17 to form a compound. Give the formula of the compound
    1.   XY2
    2.   XY
    3.   X2Y
    4.   (XY)2
16. A metal ‘M’ is in the first group of the Periodic Table. What will be the formula of its oxide
    1.   MO
    2.   M2O
    3.   M2O3
    4.   MO2
17. An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting. Write the formula of the compound formed when X reacts with chlorine.
    1.   XCl3
    2.   XCl
    3.   XCl2
    4.   XCl5
18. An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
    1.   Group 1
    2.   Group 4
    3.   Group 2
    4.   Group 3
19. An element ‘A’ belongs to the third period and group 16 of the Periodic Table. Find out the valency of A.
    1.   Valency = 6
    2.   Valency = 2
    3.   Valency = 1
    4.   Valency = 3
20. The atom of an element has electronic con-figuration 2, 8, 7. To which of the following elements would it be chemically similar?
    1.   N(7)
    2.   P(15)
    3.   Na(11)
    4.   F (9)
21. An element has 12 protons. The group and period to which this element belongs to is
    1.   2nd group, 3rd period
    2.   2nd group, 2nd period
    3.   3rd group, 2nd period
    4.   3rd group, 3rd period
22. Which of the following is correct order of atomic size?
    1.   Li < Na < K < Rb < Cs
    2.   Li > Na > K > Rb > Cs
    3.   Na < K < Li < Rb < Cs
    4.   K < Na < Li < Rb < Cs
23. Which of the following is correct order of atomic size ?
    1.   Cl < F < Br < I
    2.   F < Cl < Br < I
    3.   I < Br < Cl < F
    4.   Br < I < Cl < F
24. The elements of group 16 are called
    1.   Chalcogens
    2.   Halogens
    3.   Pnicogens
    4.   Noble gases
25. In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?
    1.   Germanium
    2.   Chlorine
    3.   Oxygen
    4.   Silicon
26. Which of the following is the outermost shell for elements of period 2?
    1.   K shell
    2.   L shell
    3.   M shell
    4.   N shell
27. Which of the following gives the correct increasing order of the atomic radii of O, F and N ?
    1.   O, F, N
    2.   N, F, O
    3.   O, N, F
    4.   F, O, N
28. Which of the following elements will form an acidic oxide?
    1.   An element with atomic number 7
    2.   An element with atomic number 3
    3.   An element with atomic number 12
    4.   An element with atomic number 19
29. Which one of the following does not increase while moving down the group of the periodic table?
    1.   Atomic radius
    2.   Metallic character
    3.   Valence electrons
    4.   Number of shells in an element
30. Silicon (14) belongs to class of
    1.   Metal
    2.   Non-metal
    3.   Metalloids
    4.   Ionic compound
31. Assertion(A): Group 1 and 2 element all are metals.Reason (R): Group 1 and 2 elements can lose electrons early to form cations (positive ions)
    
    1.   Both A and R are correct and the R is the correct explanation of the A.
    2.   The A and R are correct but the R is not the correct explanation of the A.
    3.   A is true but the R is false.
    4.   A is false but the R is true.
32. Assertion (A): Fluorine is more reactive than chlorine.Reason(R): Fluorine and chlorine belong to Group 17 called Halogen.
    
    1.   Both A and the R are correct and the R is the correct explanation of the A
    2.   The A and the R are correct but the R is not the correct explanation of the A
    3.   A is true but R is false.
    4.   A is false but R is true.
33. Those elements which have the same valence shell, belongs to the same _____________ of the periodic table
    1.   Period
    2.   Group
    3.   Chemical properties
    4.   None
34. How many periods and groups are present in the modern periodic table?
    
    1.   7 periods and 18 groups
    2.   8 periods and 7 groups
    3.   7 periods and 7 groups
    4.   8 periods and 8 groups
35. An element M is in group 13th of the periodic table, the formula for its oxide is
    1.   MO
    2.   M2O3
    3.   M3O2
    4.   None of these
36. Atoms of same element which have same atomic number but different atomic mass are called ……….
    
    1.   Isobar
    2.   Isotopes
    3.   Isotones
    4.   Allotrope
37. Variable valency is generally shown by ……….
    
    1.   s-block elements
    2.   p-block elements
    3.   d-block elements
    4.   f-block elements
38. Match the column-A and column-B on the basis of their relation and select the correct code.
    Column-A Column-B
    i) s-block elements p) Representative elements
    ii) P-block elements q) transitional elements
    iii) d-block elements r) Inner transitional elements
    iv) f-block elements s) Radio active elements
    
    1.   i-p, ii-p, iii-q,iv-r
    2.   i-p, ii-r, iii-q,iv-s
    3.   i-p, ii-p, iii-q,iv-s
    4.   i-p, ii-r, iii-q,iv-p
39. Which of the following is/are true for s-block elements?
    
    1.   Chemical reactivity of elements decreases while going downward of the group
    2.   Melting point and boiling point increase while going downward in a group.
    3.   They can have only one or two electron in the last sub-shell.
    4.   All are true
40. The tendency of an atom to draw the share pair of electrons towards itself is ...............
    1.   electronegativity
    2.   valency
    3.   oxidation
    4.   electron affinity