150 JEE Main 2018 Chemistry previous-year questions, grouped chapter-wise, each with a verified answer and full solution.
Every JEE Main 2018 Chemistry previous-year question, organised by chapter. Each links to a full step-by-step solution with a verified answer key. Use this page to revise exactly what appeared in JEE Main 2018, or open a chapter to see all years.
Which of the following compounds contain(s) no covalent bond(s)? KCl ,   PH 3 ,   O 2 ,   B 2 H 6 , …
Which of the following conversions involves change in both shape and hybridisation?
The incorrect geometry is represented by:
In the molecular orbital diagram for the molecular ion, N₂⁺, the number of electrons in the σ₂ p molecular orbital is :
The decreasing order of bond angles in   BF 3 ,   NH 3 ,   PF 3 and I 3 - is:
In the above compound, the bond orders of bonds I and II are:
According to molecular orbital theory, which of the following molecule will not be available?
Total number of lone pair of electrons in I 3 - ion is:
Which of the following best describes the diagram of molecular orbital?
Identify the pair in which the geometry of the species is T-shape and square pyramidal, respectively
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