1
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Which of the following atoms should have the highest 1st electron affinity?
A
F
B
O
C
N
D
C
2
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
Which of the following arrangements is correct in respect of solubility in water?
A
CaSO4 > BaSO4 > BeSO4 > MgSO4 > SrSO4
B
BeSO4 > MgSO4 > CaSO4 > SrSO4 > BaSO4
C
BaSO4 > SrSO4 > CaSO4 > MgSO4 > BeSO4
D
BeSO4 > CaSO4 > MgSO4 > SrSO4 > BaSO4
3
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
An element X belongs to fourth period and fifteenth group of the periodic table. Which of the following statements is true?
A
It has completely filled s-orbital and a partially filled d-orbital
B
It has completely filled s-and p-orbitals and a partially filled d-orbital
C
It has completely filled s- and p-orbitals and a half filled d-orbital
D
It has a half filled p-orbital and completely filled s-and d-orbitals
WB JEE Subjects