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1
JEE Main 2016 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Identify the incorrect statement regarding heavy water :
A
It reacts with Al4C3 to produce CD4 and Al(OD)3 .
B
It is used as a coolant in nuclear reactors.
C
It reacts with CaC2 to produce C2D2 and Ca(OD)2 .
D
It reacts with SO3 to form deuterated sulphuric acid (D2SO4).
2
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which one of the following statements about water is FALSE?
A
Water is oxidized to oxygen during photosynthesis
B
Water can act both as an acid and as a base.
C
There is extensive intramolecular hydrogen bonding in the condensed phase.
D
Ice formed by heavy water sinks in normal water
3
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
From the following statements regarding H2O2, choose the incorrect statement :
A
It decomposes on exposure to light
B
It has to be stored in plastic or wax lined glass bottles in dark
C
It has to be kept away from dust
D
It can act only as an oxidizing agent
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Very pure hydrogen (99.9%) can be made by which of the following processes?
A
Reaction of methane with steam
B
Mixing natural hydrocarbons of high molecular weight
C
Electrolysis of water
D
Reaction of salt like hydrides with water
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