Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

The freezing point of a solution containing 4.8 g of a compound in 60 g of benzene is 4.48 . what is the molar mass of the compound ( Kf = 5.1 km/s ) , ( freezing point of benzene = 5.5 degree C ) ( freezing point of benzene = 5.5 degree C ) [...]

0.440 g of a substance dissolved in 22.2 g of benzene lowered the freezing point of benzene by 0.567 degree C . The molecular mass of the substance ( Kf = 0.5.12 degree kg C /mol ) 0.440 g of a substance dissolved in 22.2 g of benzene lowered the freezing point of benzene by [...]

Of the following 0.01 m aqueous solutions, which one will exhibit the largest freezing point depression Of the following 0.01 m aqueous solutions which one will exhibit the largest freezing point depression December 14, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A solution of urea (mol. Mass 60 g/mol ) boils of 100.18∘C at one one atmospheric pressure. If kf and Kb for water are 1.86 and 0.512 K kg/ mol respectively, the above solution will freeze at: A solution of urea (mol. Mass 60 g/mol ) boils of 100.18∘C at one one atmospheric pressure. If [...]

100 g of a non – electrolyte solute ( molar 250 g /mol was dissolved in 51.2 g of benzene. If the freezing point depression constant, Kf of benzene is 5.12 kg /mol, the freezing point of benzene will be lowered by (a) 0.5 K (b) 0.2 K (c) 0.4 K (d) 0.3 K 100 [...]

What should be the freezing point of aqueous solution containing 17 gm of C2H5OH in 1000 gm of water ( water Kf = 1.86 deg – kg/mol What should be the freezing point of aqueous solution containing 17 gm of C2H5OH in 1000 gm of water ( water Kf = 1.86 deg - kg/mol December [...]

Assertion : Elevation in boiling point and depression in freezing point are colligative properties. Reason : All colligative properties are used for the calculation of molecular masses. Assertion : Elevation in boiling point and depression in freezing point are colligative properties. Reason : All colligative properties are used for the calculation of molecular masses. December [...]

Assertion : Camphor is used as solvent in the determination of molecular masses of napthalene , anthracene etc. Reason: Camphor has high molal elevation constant. anthracene etc. Reason: Camphor has high molal elevation constant. Assertion : Camphor is used as solvent in the determination of molecular masses of napthalene December 14, 2020 Category: Uncategorised (JEE [...]

Which of the following does not give white precipitate with ammoniacal AgNO3 CH≡CH CH3−C≡CH CH3−C≡C−CH3 C∣ClH2−C≡CH Which of the following does not give white precipitate with ammoniacal AgNO3 CH≡CH CH3−C≡CH CH3−C≡C−CH3 C∣ClH2−C≡CH December 14, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In order to complete the reaction 1-Pentyne a 4-Octyne b 4-Octene, a and b will be a and b will be In order to complete the reaction 1-Pentyne a 4-Octyne b 4-Octene December 14, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,