Ch 2 Solutions NCERT Solutions Class 12 Chemistry

NCERT Solutions For Class 12 Chemistry Chapter 2 Solutions

You can download the NCERT Solutions for Class 12 Chemistry Chapter 2 Solutions in PDF below. Prescribed textbook by CBSE for Chapter 2 Solutions is standard XII NCERT course book for Chemistry.

NCERT Solutions For Class 12 Chemistry Chapter 2 Solutions PDF Download

NCERT Solutions Class 12 Chemistry Chapter 2 Solutions

 

Question 2.23:
Suggest the most important type of intermolecular attractive interaction in the following pairs.
(i) n-hexane and n-octane
(ii) I2 and CCl4
(iii) NaClO4 and water
(iv) methanol and acetone
(v) acetonitrile (CH3CN) and acetone (C3H6O).
Answer
(i) Van der Wall’s forces of attraction.
(ii) Van der Wall’s forces of attraction.
(iii) Ion-diople interaction.
(iv) Dipole-dipole interaction.
(v) Dipole-dipole interaction.

NCERT Solutions Class 12 Chemistry Chapter 2 Solutions NCERT Solutions Class 12 Chemistry Chapter 2 Solutions

NCERT Solutions Class 12 Chemistry Chapter 2 Solutions NCERT Solutions Class 12 Chemistry Chapter 2 Solutions

Question 2.24:
Based on solute-solvent interactions, arrange the following in order of increasing
solubility in n-octane and explain. Cyclohexane, KCl, CH3OH, CH3CN.
Answer
n-octane is a non-polar solvent. Therefore, the solubility of a non-polar solute is more than that of a polar solute in the n-octane.
The order of increasing polarity is:
Cyclohexane < CH3CN < CH3OH < KCl
Therefore, the order of increasing solubility is:
KCl < CH3OH < CH3CN < Cyclohexane

Question 2.25:

Amongst the following compounds, identify which are insoluble, partially soluble and highly soluble in water?
(i) phenol (ii) toluene (iii) formic acid
(iv) ethylene glycol (v) chloroform (vi) pentanol.
Answer
(i) Phenol (C6H5OH) has the polar group −OH and non-polar group −C6H5. Thus, phenol is partially soluble in water.
(ii) Toluene (C6H5−CH3) has no polar groups. Thus, toluene is insoluble in water.
(iii) Formic acid (HCOOH) has the polar group −OH and can form H-bond with water.
Thus, formic acid is highly soluble in water.
(iv) Ethylene glycol has polar −OH group and can form H−bond. Thus, it is highly soluble in water.
(v) Chloroform is insoluble in water.
(vi) Pentanol (C5H11OH) has polar −OH group, but it also contains a very bulky nonpolar −C5H11 group. Thus, pentanol is partially soluble in water.

NCERT Solutions Class 12 Chemistry Chapter 2 Solutions NCERT Solutions Class 12 Chemistry Chapter 2 Solutions

NCERT Solutions Class 12 Chemistry Chapter 2 Solutions NCERT Solutions Class 12 Chemistry Chapter 2 Solutions

 

 

NCERT Solutions For Class 12 Chemistry

 

Updated New NCERT Books For Class 12 Chemistry PDF Download

Chemistry NCERT Textbook Solutions, Answers, CBSE Help Book

Central Board of Secondary Education governs the teaching pattern for XII Chemistry. For all the schools affiliated to CBSE Prescribed book is NCERT for Class 12 Chemistry. NCERT Solutions For Class 12 Chemistry will help them in preparation for 10th Standard Chemistry Exams. Aiming at securing high marks with improved basic fundamental knowledge in Chemistry should be the goal. Important concepts of in PDF is available for free download.

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