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  2. Board of Intermediate and Secondary Education, Lahore

    en.wikipedia.org/wiki/Board_of_Intermediate_and...

    The re-construction of the Board of Intermediate and Secondary Education, Lahore has been done through the Punjab Boards of Intermediate and Secondary Education Act 1976 (lately amended by Punjab Ordinance No.XLVII). Currently, nine Boards are functioning in the Punjab province at division level.

  3. List of education boards in Pakistan - Wikipedia

    en.wikipedia.org/wiki/List_of_education_boards...

    Board Established City Website Refs Catholic Board of Education, Pakistan: 1961 Karachi [47] Lahore [48] [49] Diocesan board of education, Pakistan 1960 Islamabad, Rawalpindi [50] [51] Presbyterian Education Board Pakistan Lahore, Punjab

  4. Conjugated system - Wikipedia

    en.wikipedia.org/wiki/Conjugated_system

    Cinnamaldehyde is a naturally-occurring compound that has a conjugated system penta-1,3-diene is a molecule with a conjugated system Diazomethane conjugated pi-system. In theoretical chemistry, a conjugated system is a system of connected p-orbitals with delocalized electrons in a molecule, which in general lowers the overall energy of the molecule and increases stability.

  5. Gilman reagent - Wikipedia

    en.wikipedia.org/wiki/Gilman_reagent

    A conjugated 1,4 addition using a Gilman reagent with an arbitrary R group. These reagents are useful because, unlike related Grignard reagents and organolithium reagents, they react with organic halides to replace the halide group with an R group (the Corey–House reaction). Such displacement reactions allow for the synthesis of complex ...

  6. Hyperconjugation - Wikipedia

    en.wikipedia.org/wiki/Hyperconjugation

    In organic chemistry, hyperconjugation (σ-conjugation or no-bond resonance) refers to the delocalization of electrons with the participation of bonds of primarily σ-character. Usually, hyperconjugation involves the interaction of the electrons in a sigma (σ) orbital (e.g. C–H or C–C) with an adjacent unpopulated non-bonding p or ...

  7. Glossary of chemical formulae - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemical_formulae

    C 11 H 8 O 2: menadione: 58-27-5 C 11 H 10 O β-Naphthol methyl ether: 93-04-9 C 11 H 11 NO 2: 3-indolepropionic acid: 830-96-6 C 11 H 12 N 2 O 2: tryptophan Trp: 73-22-3 C 11 H 12 O 3: myristicin: C 11 H 13 NO 6: Caramboxin or Diroximel fumarate: C 11 H 14 N 2 O: 5-methoxytryptamine: 608-07-1 C 11 H 14 O 2: methyl eugenol: C 11 H 14 O 2 ...

  8. DFTB - Wikipedia

    en.wikipedia.org/wiki/DFTB

    The Density Functional Based Tight Binding method is an approximation to density functional theory, which reduces the Kohn-Sham equations to a form of tight binding related to the Harris functional.

  9. Punjab School Education Board - Wikipedia

    en.wikipedia.org/wiki/Punjab_School_Education_Board

    The Board is headed by a full-time Chairman whose term lasts three years and who technically reports to the Secretary of School Education in the Government of Punjab.The current Education Secretary of the board is IAS Sh Harsant Singh sekhon who is sincerely committed to shape the education system of Punjab by his pioneering Initiatives like ...