4 JEE Main 2017 Some Basic Concepts of Chemistry previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2017 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.
Excess of NaOH   ( aq ) was added to 100   mL of FeCl 3   aq resulting into 2 . 14   g of Fe OH 3 .…
What quantity (in mL ) of a 45 % acid solution of a mono-protic strong acid must be mixed with a 20 % solution of the s…
1 gram of a carbonate M 2 CO 3 on treatment with excess HCl produces 0.01186 moles of CO 2 . The molar mass of M 2 CO 3…
The most abundant elements by mass in the body of a healthy human adult are: Oxygen (61.4%); Carbon (22.9%), Hydrogen (…