19 JEE Main 2019 Solutions previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2019 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.
At room temperature, a dilute solution of urea is prepared by dissolving 0.60   g of urea in 360   g of water…
K₂ HgI₄ is 40 \% ionised in aqueous solution. The value of its van't Hoff factor (i) is:
The mole fraction of a solvent in aqueous solution of a solute is 0.8 . The molality (in mol k g - 1 ) of the aqueous s…
The osmotic pressure of a dilute solution of an ionic compound X Y in water is four times that of a solution 0.01  …
Liquid M and liquid N form an ideal solution. The vapour pressures of pure liquids M and N are 450 and 700   m m H…
A solution is prepared by dissolving 0.6 g of urea (molar mass = 60   g   m o l - 1 ) and 1.8   g of glu…
The freezing point of a diluted milk sample is found to be -0.2ⁱrc C, while it should have been -0.5ⁱrc C for pure milk…
Which one of the following statements regarding Henry's law is not correct?
The elevation in boiling point for 1 molal solution of glucose is 2   K . The depression in freezing point for 2 m…
Molecules of benzoic acid C 6 H 5 COOH dimerise in 30   g of benzene. ' w ' g of benzoic acid shows a depression…
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