5 JEE Main 2018 Some Basic Concepts of Chemistry previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2018 previous-year questions from the Some Basic Concepts of Chemistry chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Some Basic Concepts of Chemistry chapter hub.
For per gram of reactant, the maximum quantity of N₂ gas is produced in which of the following thermal decomposition re…
An unknown chlorohydrocarbon has 3.55 % of chlorine. If each molecule of the hydrocarbon has one chlorine atom only; ch…
A sample of NaClO 3 is converted by heat to NaCl with a loss of 0 . 16   g of oxygen. The residue is dissolved in…
A sample of NaClO₃ is converted by heat to NaCl with a loss of 0.16 ~g of oxygen. The residue is dissolved in water and…
The ratio of mass percent of C   and   H of an organic compound C X H Y O Z is 6   :   1 . If one m…