JEE Main 2019 (Online) 8th April Evening Slot | Periodic Table & Periodicity Question 84 | Chemistry

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JEE Main 2019 (Online) 8th April Evening Slot

MCQ (Single Correct Answer)

-1

The IUPAC symbol for the element with atomic number 119 would be :

uun

une

uue

unh

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

The correct order of hydration enthapies of alkali metal ions is :

Li⁺ > Na⁺ > Cs⁺ > Rb⁺

Na⁺ > Li⁺ > K⁺ > Cs⁺ > Rb⁺

Na⁺ > Li⁺ > K⁺ > Rb⁺ > Cs⁺

Li⁺ > Na⁺ > K⁺ > Rb⁺ > Cs⁺

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

The size of the iso-electronic species Cl^–, Ar and Ca²⁺ is affected by :

electron-electron interaction in the outer orbitals

Principal quantum number of valence shell

nuclear charge

azimuthal quantum number of valence shell

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

The lathanide ion that would show colour is :

Sm³⁺

Gd³⁺

Lu³⁺

La³⁺

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