13 JEE Main 2020 Solutions previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Solutions chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Solutions chapter hub.
The osmotic pressure of a solution of NaCl is 0 . 10 atm and that of a glucose solution is 0 . 20 atm. The osmotic pres…
A graph of vapour pressure and temperature for three different liquids X , Y and Z is shown below: The following infere…
A cylinder containing an ideal gas ( 0.1 m o l of 1.0 d m 3 ) is in thermal equilibrium with a large volume of 0.5 mola…
A set of solutions is prepared using 180   g of water as a solvent and 10   g of different non-volatile solut…
Ferrous sulphate heptahydrate is used to fortify foods with iron. The amount (in grams) of the salt required to achieve…
The elevation of boiling point of 0 . 10 m aqueous CrCl 3 . xNH 3 solution is two times that of 0 . 05   m aqueous…
The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the foll…
How much amount of N a C l should be added to 600   g of water ρ = 1.00 g / m L to decrease the freezing poin…
At 300   K , the vapour pressure of a solution containing 1 mole of n -hexane and 3 moles of n -heptane is 550 …
Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non volatile solute…
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