1
JEE Main 2023 (Online) 29th January Evening Shift
Numerical
+4
-1
Total number of acidic oxides among
$$\mathrm{N_2O_3,NO_2,N_2O,Cl_2O_7,SO_2,CO,CaO,Na_2O}$$ and $$\mathrm{NO}$$ is ____________.
Your input ____
2
JEE Main 2021 (Online) 27th August Morning Shift
Numerical
+4
-1
The number of f electrons in the ground state electronic configuration of Np (Z = 93) is ___________. (Nearest integer)
Your input ____
3
JEE Main 2021 (Online) 26th August Morning Shift
Numerical
+4
-1
These are physical properties of an element
(A) Sublimation enthalpy
(B) Ionisation enthalpy
(C) Hydration enthalpy
(D) Electron gain enthalpy
The total number of above properties that affect the reduction potential is ____________ (Integer answer)
(A) Sublimation enthalpy
(B) Ionisation enthalpy
(C) Hydration enthalpy
(D) Electron gain enthalpy
The total number of above properties that affect the reduction potential is ____________ (Integer answer)
Your input ____
4
JEE Main 2021 (Online) 26th August Morning Shift
Numerical
+4
-1
The number of 4f electrons in the ground statement electronic configuration of Gd2+ is ___________. [Atomic number of Gd = 64]
Your input ____
Questions Asked from Periodic Table & Periodicity (Numerical)
Number in Brackets after Paper Indicates
No. of Questions
JEE Main 2023 (Online) 29th January Evening Shift (1)
JEE Main 2021 (Online) 27th August Morning Shift (1)
JEE Main 2021 (Online) 26th August Morning Shift (2)
JEE Main 2021 (Online) 25th July Evening Shift (1)
JEE Main 2021 (Online) 24th February Morning Shift (1)
JEE Main 2020 (Online) 6th September Evening Slot (1)
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