IMP for chemistry

Chemistry I- Science-Hsc

Important Questions Bank-Maharashtra Board

Chapter   1-Solid   State

1. Crystalline and   amorphous   substances   diamond, graphite   fullerene

2.Bravais lattices-Edge   length   and   angles

3.Diagrams of   arrangement   of   atoms   not   asked

4.Defects in   crystal   lattices

5.Semiconductors  n   and   p   type

6.Numericals on   calculations   of   density   of   scc   bcc   fcc   unit   cell

Chapter-2-Solutions   and   colligative  properties

1.Many definitions   and   formulae   meanings   of   different   terms   in   it

2.Derivations-Raoults law   ,   molar   mass   and   relative   lowering   of   vapour   pressure,   solution   equation,   I   factor   and   degree   of   dissociation

3.No diagrames

4.Numericals many   types   like   molarity,   molality,   relative   lowering   of   vapour   pressure, osmotic   press,   molar   mass,   I   factor

Chapter-3-Chemical   thermodynamics   and   energetics

1. Many definitions

2.Derivations of   work   done,   Gibb’s   energy   and   eqm   constant,   Hess   law

3.Numericals on   work   done   ,enthalpy,   entropy,   internal   energy,   Hess   law,   Gibbs   free   energy.   No   diagrams.

Chapter-4-Electrochemistry

1.  Definitions,Statements-Laws

2.  Diagrams

3.  Long questions-   determination   of   cell   constant   ,salt   bridge,   Daniel   cell,   measurement   of   emf,   emf   series,   SHE,   calomel,   dry   cell,   lead   accumulator,   fuel   cell

4. Numericals-conductivity Faradays   laws,   Nernst   equation,   cell   potental,   equilibrium   constant   and   cell   potential

Chapter-5-Chemical   kinetics

1.  Definitions Order   of   reaction   and   molecularity  Rate   of   reaction,   rate   law,   rate=k[A]x[B]y

2. Order of   reaction   and   molecularity   units   of   rate  ,k.   Derivation-   integrated   rate   law   for   first   order   reaction

3. No diagrams

4. Numericals-rate constant   ,   half   life

Chapter-6-General   principals   and processes   of   isolation   of   elements

1.  Short   notes-   concentration   processes   ,Froth floatation, leaching,   roasting   ,   calcination,   pyro,   hydro,   electro-metallurgy,   refining process,   etc

2.Many diagrams[no   Ellingham   diagram]

3. Many reactions

4. No   numericals

Chapter-7-p-block   elements

1.  Trends in   physical   and   chemical   properTies   of 15,   16,   17,18   groups,   anomalous   behaviour   of first   element   of   each   group

2. Many reactions

3. Many structures-   oxides   of   N,   P,   S,   and interhalogen   compounds,   PCl3   ,PCl5,   oxyacids of   P   and   Cl

4. Diagrame- allotrpes   of   S   and   P,   PCl3,   PCl5,   IF7

5. No numerical