1
IIT-JEE 2002 Screening
MCQ (Single Correct Answer)
+1
-0.25
Identify the correct order of acidic strengths of CO2, CuO, CaO, H2O
A
CaO < CuO < H2O < CO2
B
H2O < CuO < CaO < CO2
C
CaO < H2O < CuO < CO2
D
H2O < CO2 < CaO < CuO
2
IIT-JEE 2002 Screening
MCQ (Single Correct Answer)
+2
-0.5
Identify the least stable ion amongst the following
A
Li-
B
Be-
C
B-
D
C-
3
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+2
-0.5
Read the following statement and explanation and answer as per the options given below

ASSERTION : The first ionization energy of Be is greater than that of B.

REASON : 2p orbital is lower in energy than 2s.
A
If both assertion and reason are CORRECT, and reason is the CORRECT explanation of the assertion
B
If both assertion and reason are CORRECT, and reason is not the CORRECT explanation of the assertion
C
If assertion is CORRECT, but reason is INCORRECT
D
If assertion is INCORRECT, but reason is CORRECT
4
IIT-JEE 2000 Screening
MCQ (Single Correct Answer)
+1
-0.25
The correct order of radii is
A
N < Be < B
B
F- < O2- < N3-
C
Na < Li < K
D
Fe3+ < Fe2+ < Fe4+
JEE Advanced Subjects