This chapter is currently out of syllabus
1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
KO2 (potassium super oxide) is used in oxygen cylinders in space and submarines because it :
A
absorbs CO2 and increases O2 content
B
eliminates moisture
C
absorbs CO2
D
produces ozone
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The metallic sodium disolves in liquid ammonia to form a deep blue coloured solution. The deep blue colour is due to formation of :
A
solvated electron, $$e(NH_3)^-_x$$
B
solvated atomic sodium, Na(NH3)y
C
(Na+ + Na-)
D
NaNH2 + H2
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A metal M readily forms its sulphate MSO4, which is water-soluble. It forms its oxide MO which becomes inert on heating. It forms an insoluble hydroxide M(OH)2 which is soluble in NaOH solution. The M is :
A
Mg
B
Ba
C
Ca
D
Be
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