EASY
11th Odisha Board
IMPORTANT
Earn 100
Which of the following elements shows variable valency?
Iron, sodium, calcium, strontium
Important Questions on Classification of Elements and Periodicity in Properties
EASY
11th Odisha Board
IMPORTANT
Name any two elements of group 2 of the periodic table.
MEDIUM
11th Odisha Board
IMPORTANT
Which one of the following elements has the lowest electronegativity?
MEDIUM
11th Odisha Board
IMPORTANT
Which of the following has the highest ionisation potential?
MEDIUM
11th Odisha Board
IMPORTANT
Arrange the following in order of increasing size:
EASY
11th Odisha Board
IMPORTANT
Name the elements in the group I of the periodic table.
MEDIUM
11th Odisha Board
IMPORTANT
Which two elements of the second period of the periodic table have both positive and negative oxidation number?
EASY
11th Odisha Board
IMPORTANT
Write the electronic configuration of an element present in the period and 16 group.
MEDIUM
11th Odisha Board
IMPORTANT
Why is ionization energy of greater than ?
