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1
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct sequence of decreasing number of $$\pi $$-bonds in the structures of H2SO3, H2SO4 and H2S2O7 is :
A
H2SO3 > H2SO4 > H2S2O7
B
H2SO4 > H2S2O7 > H2SO3
C
H2S2O7 > H2SO4 > H2SO3
D
H2S2O7 > H2SO3 > H2SO4
2
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The number of P−OH bonds and the oxidation state of phosphorus atom in pyrophosphoric acid (H4P2O7) respectively are :
A
four and four
B
five and four
C
five and five
D
four and five
3
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
XeF6 on partial hydrolysis with water produces a compound ‘X’. The same compound ‘X’ is formed when XeF6 reacts with silica. The compound ‘X’ is :
A
XeF2
B
XeF4
C
XeOF4
D
XeO3
4
JEE Main 2017 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The number of S = O and S − OH bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are :
A
(2 and 2) and (2 and 2)
B
(2 and 4) and (2 and 4)
C
(4 and 2) and (2 and 4)
D
(4 and 2) and (4 and 2)
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