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National Examination Board is responsible for conducting and managing 12th grade-Higher Secondary exams and 10th grade Secondary Education Examination (SEE) Exams. [3] The jurisdiction of the previous Higher Secondary Education Board (HSEB) was limited to 11th and 12th-grade high school (10+2) only. HSEB was established in 1989 under the Higher ...
Heteroarenes are aromatic compounds, where at least one methine or vinylene (-C= or -CH=CH-) group is replaced by a heteroatom: oxygen, nitrogen, or sulfur. [3] Examples of non-benzene compounds with aromatic properties are furan, a heterocyclic compound with a five-membered ring that includes a single oxygen atom, and pyridine, a heterocyclic compound with a six-membered ring containing one ...
The School Leaving Certificate, commonly abbreviated as SLC, [1] is the final examination of Class 11 and Class 12, which is also known as the +2 course in Nepal. [2] The +2 course is generally pursued after completing the Secondary Education Examination (SEE) (Class 10 Final Exam).
The SEE examination is said to be scheduled in March of every year. As the new Education Act, 2016 (2073) has been implemented, the SLC examination will be taken place in Grade 12 as a national level examination whereas the examination of Grade 10 will be known as Secondary Education Examination (S.E.E).
Some such structures may contain aromatic π-sextets, namely groups of six π-electrons localized in a benzene-like moiety and separated by adjacent rings through C–C bonds. An aromatic π-sextet can be represented by a circle, as in the case of the anthracene molecule (below). Clar's rule states that for a benzenoid polycyclic aromatic ...
Furan is a heterocyclic organic compound, consisting of a five-membered aromatic ring with four carbon atoms and one oxygen atom. Chemical compounds containing such rings are also referred to as furans.
Two different resonance forms of benzene (top) combine to produce an average structure (bottom). In organic chemistry, aromaticity is a chemical property describing the way in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibits a stabilization stronger than would be expected from conjugation alone.
The educational system in Nepal was long based on home-schooling and gurukulas. [4] This was similar to the former Indian system of education, in which the pupils would learn either in their own homes or with reputed priests or Gurus. Before Nepal was declared a democratic country, the general public had no access to formal education.