Ncert Solutions Chemistry Class 12th

1.4 Glass is basically an amorphous solid. When glass is made the silica is cooled from its liquid state, and it does not solidifies even when the temperature is dropped below freezing point. Hence, glass is a super cooled liquid. Due to this fluidity property, glass can be considered as a liquid of extremely high viscosity. The evidence of the fact can be seen in the windows getting thicker at bottom over a period of time.

1.3 Amorphous solids: Amorphous solids are solids in which the geometry of the solid is said to be irregular. When the amorphous solids are cut with a knife, a clean surface is not obtained. The amorphous solids are called pseudo solids or sometimes also as super cooled liquids. Polyurethane, Cellophane, Polyvinyl Chloride, Fiberglass, Teflon.

Crystalline solids: Crystalline solids are solids in which the geometry of the solid is said to be regular. When the Crystalline solids are cut with a knife, a clean surface is obtained. Crystalline solids are also called true solids.Naphthalene, Benzoic acid, Potassium nitrate, and Copper

1.2 They are rigid so the intermolecular forces of attraction that are present in solids are very strong. Hence, solids have a definite volume.

1.1 : It is because of the lack of mobility which makes a solid rigid. Since the atoms are almost lacking in mobility, their kinetic energy is negligibly small. The constituent particles in solids are held together by strong inter-atomic forces. The average location of the particles in a lattice does not change with time.

Students while studying Coordnation Compound Chapter 5 must make a handy notes of formulas, definations, atomic number / weight, diagrams. These notes will be helpful in quick revision.

The question and answer for Coordination Compounds textbook exericses are updated on this article. The solutions are prepared the experts teachers to help students undertsnad the Coorination Compounds chapter throughly.

The ncert solutions for Class 12 Coordination Compound is updated on this artcile. Students can get the detailed solutions for intext and exericses here. 

Students can refer the NCERT Solutions for Class 12 Chemistry Chapter 4 The d and f block Elements shared by the experts at Shiksha for NCERT Chemisytry textbook questions. The solutions for CBSE Chemistry d and f block questions is explanined in easy way for better understanding.

Students need to practice the Class 12 Chemistry previous year question to identify the important questions. Some of important questions are reactions of $K_2Cr_2O_7$K2? Cr2? O7? and $KMnO_4$KMnO4? in acidic, basic, and neutral medium, lanthanide contraction and its consequences, balancing redox reactions, etc.