Normal type of MCQ with one correct option
(n which of the following energy is absorbed.
Normal type of MCQ with one correct option
Which or the following has the smallest radius
Be2+
Li+
O2-
F-
Normal type of MCQ with one correct option
Which of the following transitions involves maximum amount of energy
Normal type of MCQ with one correct option
In a group of periodic table the ionisation potentials or elements decrease from top to bottom of.
Increase in densities
Decrease in densities.
Decrease in chemical reactivates
Increase in atomic sizes
/
A,B,C
B, C
C,D
A,C & D
A
B
C
D
/
BF3 , B2O3
BF, B2O
BF2, BO
None of these
/
B, C
A, B
A, D
B, D
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true