1
IIT-JEE 1980
MCQ (Single Correct Answer)
+1
-0.25
HCL is added to the following oxides. Which one would give H2O2?
A
MnO2
B
PbO2
C
BaO2.8H2O
D
NO2
2
IIT-JEE 1978
MCQ (Single Correct Answer)
+1
-0.25
The substance absorbs CO2 and violently reacts with water. The substance is
A
CaCO3
B
CaO
C
H2SO4
D
ZnO
JEE Advanced Subjects