Solutions

CBSE Class 12 · Chemistry · 29 past questions

8 of 29 · show all

1. Q22 2023

   Value of Henry's constant K$_H$…

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2. Q23 2023

   The vapour pressure of pure liquid X and pure liquid Y at 25 °C are 120 mm Hg and 160 mm Hg respectively. If…

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3. 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…

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4. Q25 2023

   An azeotropic mixture of two liquids has a boiling point higher than either of the two liquids when it…

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5. Q26 2023

   Which of the following colligative property is used to find the molar mass of proteins ?

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6. 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…

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7. Q28 2023

   The colligative property used for the determination of molar mass of polymers and proteins is…

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8. Q29 2023

   Low concentration of oxygen in the blood and tissues of people living at high altitude is due to…

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