6 JEE Main 2012 Classification of Elements and Periodicity in Properties previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2012 previous-year questions from the Classification of Elements and Periodicity in Properties chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Classification of Elements and Periodicity in Properties chapter hub.
Which one of the following will react most vigorously with water?
The molecule having smallest bond angle is :
Which among the following elements has the highest first ionization enthalpy?
Which of the following presents the correct order of second ionization enthalpies of C, N, O and F ?
Which pair of elements with the given atomic numbers is expected to have similar properties?
In which of the following arrangements, the sequence is not strictly according to the property written against it?