1
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
The first ionization energy of magnesium is smaller as compared to that of elements X and Y, but higher than that of Z. The elements X, Y and Z, respectively, are :
2
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
The common positive oxidation states for an element with atomic number 24, are :
3
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
The absolute value of the electron gain enthalpy of halogens satisfies :
4
JEE Main 2021 (Online) 16th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
The characteristics of elements X, Y and Z with atomic numbers, respectively, 33, 53 and 83 are :
Questions Asked from Periodic Table & Periodicity (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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