IMP For 12th CHEMISTRY

     

12th STD Chemistry IMP 

                 Dear All Students, Please Do your studies sincerely otherwise you will loose the opportunity to see the amazing world of Engineering, Medical, Education, Govt Jobs,  & Much more..

                    There are very interesting fields like Nano science, Microbiology, Biotech, etc who needs your efforts and good percentage…….

SACHIN WAGH SIR

GYAN SARITA JR. COLLEGE,

Mulund West,

Mumbai

•Important  points to study from today.

• Solid State - (4 Marks Questions)

• Solid State - (Numericals)

• Solutions - (5 Marks Questions)

• Concentration of solutions - (Numerical)

• Henry's law - (Numerical)

• Raoult's law & Colligative properties - (Numerical)

• Electrochemistry - (5 Marks Questions)

• Resistance,conductivity & Kohlrausch law - (Numerical)

• Nernst Equation - (Numerical)

• Faraday's laws of electrolysis - (Numerical)

• Chemical kinetics - (5 Marks Questions)

• Chemical kinetics - (Numerical)

• Surface Chemistry - (4 Marks Questions)

• General principles and process of isolation of elements - (3 Marks Questions)

• P block elements - (8 Marks Questions)

• d and f  block elements - (5 Marks Questions)

• Coordination compounds - (3 Marks Questions)

• Haloalkanes and Haloarenes - (4 Marks Questions)

• Alcohols,Phenols and ethers - (4 Marks Questions)

• Aldehyde,Ketone and Carboxylic acid. - (6 Marks Questions)

• Amines - (4 Marks Questions)

• Biomolecules - (4 Marks Questions)

• Polymers - (3 Marks Questions)

• Chemistry in everyday life - (3 Marks Questions)

• IUPAC Nomeclature

•Solid State - 4 Marks Questions

•1. Mention the characteristic properties of solid.

•2. Mention the differences between crystalline solid and amorphous solid.

•3. Explain the terms a) anisotropy b) isotropy. Why is crystalline solid anisotropic while amorphous solid isotropic in nature? 

•4. What makes glass different from quartz? Under what condition quartz is converted to glass?

•5. Why are amorphous solids called pseudo solids or super cooled liquids?

•6. How are crystalline solids classified on the basis of intermolecular forces? Give two examples of each type  and mention  their properties.

•7. Compare the properties of diamond and graphite on the basis of their structures.

•8. Classify the following as ionic, metallic, molecular, covalent, or amorphous.

•a) P4O10   b) (NH4)3PO4  c) I2 d) Plastic e) graphite  f) Brass  g) Rb  h) LiBr  i) Si

•9. How are molecular solids subdivided further? Give two examples each and mention their properties.

•10. Account for the following:

•a) Glass panes fixed to windows of old buildings becomes slightly thicker at the bottom than at the top.
b) NaCl(s) does not conduct electricity but it conducts either in molten state or in aqueous solution.
c) Diamond is a non conductor while graphite is a conductor of electricity.
d) Diamond is hard while graphite is soft. e) Graphite is a lubricant.
f) Ionic solids are hard and brittle.g) MgO and NaCl are ionic solids but MgO has higher melting point than NaCl.
h) NaCl exhibit schottky defect and not frenkel defect.

•11. Explain the terms

•a) lattice point     b) crystal lattice   c) unit cell.

•12. What are Bravis lattices? Mention the characteristics of a crystal lattice.

•13. Mention the characteristics of a unit cell. Draw a neat diagram of a unit cell and show its parameters.

•14. What is the difference between primitive and centered unit cell?

•15. Calculate the number of atoms in

•a) SCC   b) BCC    c) FCC unit cells.

•16. Mention the characteristics of seven primitive unit cells and their possible variation as centered unit cells.

•17. Name the centered unit cells and position of atoms in each centered unit cell.