33% OFF
ExamGOAL
MOST RELEVANT

JEE Main Ultimate Online Test Series - 2027

458 Tests
10,140 Questions
English & Hindi (हिन्दी) Languages
331 Topic Tests87 Chapter Tests30 Full Tests10 Part Tests
  • Most Relevant Questions for JEE Main 2027
  • JEE Main Predictive Percentile and Rank
  • Best Solution to Every Question
  • Very Detailed Analysis
₹999 ₹1,499
Save ₹500
Access valid till 31 May 2027
Check Out
1
IIT-JEE 1986
MCQ (Single Correct Answer)
+1
-0.25
The pair of compound which cannot exist together in solution is:
A
NaHCO3 and NaOH
B
Na2CO3 and NaHCO3
C
Na2CO3 and NaOH
D
NaHCO3 and NaCl
2
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
The oxide that gives hydrogen peroxide on treatment with a dilute acid is
A
PbO2
B
Na2O2
C
MnO2
D
TiO2
3
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
Molecular formula of Glauber's salt is:
A
MgSO4.7H2O
B
CuSO4.5H2O
C
FeSO4.7H2O
D
Na2SO4.10H2O
4
IIT-JEE 1984
MCQ (Single Correct Answer)
+1
-0.25
The hydration energy of Mg++ is larger than that of:
A
Al3+
B
Na+
C
Be++
D
Mg3+

JEE Advanced Subjects

Browse all chapters by subject