Organisation : Mizoram Public Service Commission
Announcement : Syllabus
Designation : Junior Scientific Officer

Home Page : https://mpsc.mizoram.gov.in/
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Junior Scientific Officer Exam Syllabus :
Technical Paper – I
Unit - I : Biological Science ( 60 marks )
Section A
Cell theory | Fluid mosaic model |Structure of mitochondrion | Ribosome | Endoplasmic reticulum | Golgi complex | Phagocytosis |Structure of nuclear envelope | Human chromosome structure |Stages of cell cycle 20 Marks

Section B
Glycolysis | Tricarboxylic cycle | Electron transport chain | ATP synthesis | Action potential | Synaptic transmission | Structure of haemoglobin | Blood clotting | Structure of immunoglobulin | Types of immunoglobulins 20 Marks

Section C
Structure of DNA | Types of RNA | DNA replication | Transcription | Genetic code | Translation | Principle of genetic engineering | Restriction enzymes and DNA ligase | DNA fingerprinting | cDNA and genomic libraries 20 Marks

Unit –II : Chemical Science ( 60 Marks) (All unit carry 15 marks each)
(i) Atomic Structure, Periodic Properties and Chemical Bonding :
DE-Broglie’s concept of dual character of matter; Heisenberg’s Uncertainty Principle; Schrodinger equation; quantum numbers; shapes of s, p and d-orbitals; Aufbau principle; Pauli’s exclusion principle; Hund’s maximum multiplicity rule; Effective nuclear charge. The general features of long form of periodic table;

Detailed discussions (definition, factors affecting it and periodic trends) of the following properties of the elements, with reference to s and p- block:
(a) Atomic radii and Ionic radii;
(b) Ionization Energy, Successive ionization energies,
(c) Electron Affinity,
(d) Electronegativity.

Covalent character in ionic compounds, Fajan’s rules and consequences of polarization; Ionic character in covalent compounds, Percentage ionic character from dipole moment and electronegativity difference; Concept of hybridization; valence shell electron pair repulsion theory (VSEPR), valence bond theory and molecular orbital theory. Hydrogen bonding and its effect on melting point and boiling point.

(ii) Organic functional groups & basic concept of reaction mechanism :
General preparation, properties and inter-conversions of the following functional groups: alkyl halides, alcohols, aldehydes, ketones, amines, nitriles, carboxylic acids & its derivatives; Inductive-effect, Electromeric-effect, Mesomeric-effect or Resonance, hyperconjugation, homolytic and heterolytic bond-breaking; Reaction intermediates (formation & stability); electrophiles, nucleophiles. Energy considerations; Aromaticity- Huckel rule & its application; SN1, SN2, E1 & E2 mechainsms.

(iii) Colloids, Surface Chemistry and Electrochemistry :
Classification of colloids; preparation of colloids - peptisation, Bredig’s method and condensation methods; purification of colloids; properties of colloids - Tyndall effect, Brownian movement, electrophoresis and electro-osmosis; protective colloids and gold number.

Sols (reversible and irreversible), emulsions and emulsifiers, association colloids (micelles), gels. Applications of colloids. Physisorption; chemisorption; molar enthalpy of adsorption. Langmuir and Freundlich adsorption isotherm. Specific Surface area determination (BET method). Electrical conductance; specific, equivalent and molar conductivity; variation of conductance with dilution for weak and strong electrolytes; Kohlrausch’s law of independent migration of ions.

Arrhenius theory of electrolytic dissociation; Ostwald’s dilution law, ionic strength, Debye–Huckel– Onsager equation for strong electrolytes (derivation not required), asymmetry effect; electrophoretic effect; Debye-Falkenhagen effect and Wien effect (qualitative treatment only).

(iv) Experimental Analysis :
Significant figures; rounding off of numerical expressions; types of errors: minimizing of errors, the normal distribution of indeterminate errors, propagation of determinate errors; accuracy and precision, methods of their expression, difference between accuracy and precision; reporting of analytical data, rejection of data, confidence limits and intervals, test of significance (the F-test and t-test).

Volumetric titrimetry; primary and secondary standard; expressing concentrations of solutions; theory of acid-base and redox indicators; application of solubility product and common ion effect in analytical chemistry; Concept of group separation in qualitative analysis.

Theories of distillation, fractional distillation, steam distillation, sublimation and zone refining. Solvent extraction: Principle and efficiency of the technique; Chromatography: Classification, principles and efficiency of different techniques.