JEE Main 202522 Jan, Evening shiftChemistryMediumSome Basic Concepts in Chemistry88× since 2002
20 mL of 2 M NaOH solution is added to 400 mL of 0.5 M NaOH solution. The final concentration of the solution is ______ M. (Nearest integer)
JEE Main 2025 · 22 Jan, Evening shift · Q74