Solutions

CBSE Class 12 · Chemistry · 29 past questions

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Q3 2026

Calculate the boiling point of a solution containing 0.61 g of benzoic acid (Molar mass = 122 g mol$^{-1}$)…
Q8 2025

An aqueous solution of NaOH was made and its molar mass from the measurement of osmotic pressure at 27°C was…
Q9 2025

At 25 °C the saturated vapour pressure of water is 24 mm Hg. Find the saturated vapour pressure of a 5%…
Q12 2025

A solution of glucose (molar mass = 180 g mol$^{-1}$) in water has a boiling point of 100.20 °C. Calculate…
Q15 2024

A 6% solution of glucose (molar mass = 180 g mol⁻¹) is isotonic with 2.5% solution of an unknown organic…
Q16 2024

The vapour pressure of a solvent at 283 K is 100 mm Hg. Calculate the vapour pressure of a dilute solution…
Q17 2024

A 1% solution of solute 'X' is isotonic with a 6% solution of sucrose (molar mass = 342 g mol^-1). The molar…
Q19 2024

A solution is prepared by dissolving 5 g of a non-volatile solute in 200 g of water. It has a vapour pressure…
Q24 2023

When 19.5 g of $F - CH_2 - COOH$ (Molar mass = 78 g mol$^{-1}$), is dissolved in 500 g of water, the…
Q27 2023

0.3 g of acetic acid (M = 60 g mol$^{-1}$) dissolved in 30 g of benzene shows a depression in freezing point…