1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following oxides is amphoteric in character?
A
CaO
B
CO2
C
SiO2
D
SnO2
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
In which of the following arrangements the order is NOT according to the property indicated against it?
A
Li < Na < K < Rb Increasing metallic radius
B
I < Br < F < Cl Increasing electron gain enthalpy (with negative sign)
C
B < C < N < O Increasing first ionization enthalpy
D
Al3+ < Mg2+ < Na+ < F- Increasing ionic size
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which one of the following ions has the highest value of ionic radius?
A
O2-
B
B3+
C
Li+
D
F-
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Among Al2O3, SiO2, P2O3 and SO2 the correct order of acid strength is
A
SO2 < P2O3 < SiO2 < Al2O3
B
Al2O3 < SiO2 < P2O3 < SO2
C
Al2O3 < SiO2 < SO2 < P2O3
D
SiO2 < SO2 < Al2O3 < P2O3
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12