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CBSE 12th Standard Chemistry Subject Solution HOT Questions 2 Mark Questions With Solution 2021

Published on: 28/05/2021

QB365 Provides the HOT Question Papers for Class 12 Chemistry, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams

Download CBSE Class 12th Standard CBSE Chemistry question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 12th Standard CBSE Chemistry

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Std: 12th Standard CBSE - Chemistry

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Questions:

Generic 2

4 x 2 = 8

The storage battery contains a solution of sulphuric acid 38 % by mass. At this concentration vant Hoff factor is 2.50. At what temperature will the battery condense freeze ? K_f for water = 1.86 K kg mol^-1.

An aqueous solution of 1.248 g of Barium chloride ( molar mass = 208.34 g mol^-1 ) in 100 g of water is found to boil at 100.0832⁰C. Calculate the degree of dissociation of BaCl₂ . K_b of water = 0.52 K kg mol^-1.

75.2 g of phenol is dissolved in solvent of K_f = 14. If the depression in freezing point is 7K, find the % of phenol that dimerises ?

To 500 cm³ of water, \(3.0\times { 10 }^{ -3 }\) kg of acetic acid is added. If 23% of acetic acid is dissociated, what will be the depression in freezing point ? K_f and density of water are 1.86 K kg mol^-1 and 0.997 g cm^-3respectively.