MCQ FOR PRACTICALS

MCQ FOR PRACTICALS

Periodic Table

Quiz

Choose the correct option

 

1. Which amongst the following is a semi metallic element ?
   1.   Ca
   2.   Be
   3.   Ge
   4.   Au
2. Which of the following pairs of elements belong to the same group ?
   1.   Na , K
   2.   F,C
   3.   Ca, Ba
   4.   S ,Cl
3. Which element belongs to group second and third period of periodic table ?
   1.   Na
   2.   Ma
   3.   Al
   4.   Ca
4. On movind down the group,the valency of the element
   1.   Decreases
   2.   Increases
   3.   First decreases than increases
   4.   Remains same
5. Who proposed Atomic Number of an element is a more fundamental property
   1.   Lavoisier
   2.   Newland
   3.   Dobereiner
   4.   Moseley
6. Elements of same period have
   1.   Same electropositivity
   2.   Same valence electrons
   3.   Same number of shells
   4.   Same atomic size
7. Who proposed The Law of Triads
   1.   Mendeleeve
   2.   Dobereiner
   3.   Newland
   4.   Moseley
8. For which two elements mendeleev left gaps in his periodic table ?
   1.   Ga, Ge
   2.   Al, Ga
   3.   Na,K
   4.   Cl, Br
9. On moving across the period atomic size of an element
   1.   Increases
   2.   Decreases
   3.   first increases then decreases
   4.   First decreases then increases
10. The nature of oxides of elements belonging to group first and second are
    1.   Acidic
    2.   Amphoteric
    3.   Basic
    4.   Acidic and basic both