1
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
When BaCl2 is added to an aqueous salt solution, a white precipitate is obtained. The anion among CO$$_3^{2 - }$$, SO$$_3^{2 - }$$ and SO$$_4^{2 - }$$ that was present in the solution can be
A
CO$$_3^{2 - }$$ but not any of the other two
B
SO$$_3^{2 - }$$ but not any of the other two
C
SO$$_4^{2 - }$$ but not any of the other two
D
Any of them
2
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
Nitrogen dioxide is not produced on heating
A
KNO3
B
Pb(NO3)2
C
Cu(NO3)2
D
AgNO3
3
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
In the solid state, PCl5 exists as
A
[PCl4]$$-$$ and [PCl6]+ ions
B
covalent PCl5 molecules only
C
[PCl4]+ and [PCl6]$$-$$ ions
D
covalent P2Cl10 molecules only
4
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
The acid in which O$$-$$O bonding is present is
A
H2S2O3
B
H2S2O6
C
H2S2O8
D
H2S4O6
WB JEE Subjects