1
IIT-JEE 2009 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2
The compound(s) formed upon combustion of sodium metal in excess air is (are)
A
Na2O2
B
Na2O
C
NaO2
D
NaOH
2
IIT-JEE 2006
MCQ (More than One Correct Answer)
+5
-1.25
The species present in solution when CO2 is dissolved in water are
A
CO2, H2CO3, $$HCO_3^-$$, $$CO_3^{2-}$$
B
$$H_2CO_3$$, $$CO_3^{2-}$$
C
$$CO_3^{2-}$$, $$HCO_3^-$$
D
CO2, H2CO3
3
IIT-JEE 2006
MCQ (More than One Correct Answer)
+5
-1.25
MgSO4 on reaction with NH4OH and Na2HPO4 forms a white crystalline precipitate. What is its formula?
A
Mg(NH4)PO4
B
Mg3(PO4)2
C
MgCl2.MgSO4
D
MgSO4
4
IIT-JEE 1998
MCQ (More than One Correct Answer)
+2
-0.5
Highly pure dilute solution of sodium in liquid ammonia
A
shows blue color
B
exhibits electrical conductivity
C
produces sodium amide
D
produces hydrogen gas
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