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1
JEE Advanced 2020 Paper 2 Offline
Numerical
+3
-1
The 1st, 2nd and 3rd ionisation enthalpies, I1, I2 and I3, of four atoms with atomic numbers n, n + 1, n + 2, and n + 3, where n < 10, are tabulated below. What is the value of n?
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2
IIT-JEE 2010 Paper 2 Offline
Numerical
+2
-0
Among the following, the number of elements showing only one non-zero oxidation state is :
O, Cl, F, N, P, Sn, Tl, Na, Ti
O, Cl, F, N, P, Sn, Tl, Na, Ti
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