1
JEE Main 2025 (Online) 23rd January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Given below are the atomic numbers of some group 14 elements. The atomic number of the element with lowest melting point is :
2
JEE Main 2025 (Online) 23rd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
The element that does not belong to the same period of the remaining elements (modern periodic table) is:
3
JEE Main 2025 (Online) 22nd January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :
Statement (I) : An element in the extreme left of the periodic table forms acidic oxides.
Statement (II) : Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table.
In the light of the above statements, choose the correct answer from the options given below :
4
JEE Main 2025 (Online) 22nd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Match List-I with List-II.
| List - I | List - II | ||
|---|---|---|---|
| (A) | $\mathrm{Al}^{3+}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$ | (I) | Ionisation Enthalpy |
| (B) | $\mathrm{B}<\mathrm{C}<\mathrm{O}<\mathrm{N}$ | (II) | Metallic character |
| (C) | $\mathrm{B}<\mathrm{Al}<\mathrm{Mg}<\mathrm{K}$ | (III) | Electronegativity |
| (D) | $\mathrm{Si}<\mathrm{P}<\mathrm{S}<\mathrm{Cl}$ | (IV) | Ionic radii |
Choose the correct answer from the options given below :
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