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The results of the examinations are usually declared in the first week of May to mid-June. In general, about 80% of candidates receive a passing score. [8] The Delhi High Court has directed the Central Board of Secondary Education and Delhi University to discuss the ways by which the results of the main exam, revaluation, and compartment exam can be declared earlier than usual so that ...
The 2025 CBSE board examination for Class 10 were held from 15 February till 18 March and from 15 February till 4 April for class 12. The usual starting time for each exam was 10:30 am but depending on the length and/or maximum marks for the subject, the finishing time was either 12:30 pm (2 hours, shorter exams, usually 40-50 marks) or 1:30 pm ...
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
Later, the results were rescheduled to be declared on June 12, 2015. On 15 June 2015 the Supreme Court asked CBSE to re-conduct the AIPMT 2015 Exam within 4 weeks (by 12 July 2015). After a hearing on the pleas of CBSE, Supreme Court had decided to re-conduct exam on 25 July 2015.
In South Africa, some universities follow a model based on the British system. Thus, at the University of Cape Town and the University of South Africa (UNISA), the percentages are calibrated as follows: a first-class pass is given for 75% and above, a second (division one) for 70–74%, a second (division two) for 60–69%, and a third for 50–59%.
In India, GCSE can be used for comparison with class 12 and class 10 Board Examination which is usually taken in Class 10 and Class 12.The Board Exams are usually important for student who want to seek admission in India Along with Admission in college in UK as CBSE, ICSE-ISC are similar to GCSE .
Early speculations about the nature of the chemical bond, from as early as the 12th century, supposed that certain types of chemical species were joined by a type of chemical affinity. In 1704, Sir Isaac Newton famously outlined his atomic bonding theory, in "Query 31" of his Opticks, whereby atoms attach to each other by some "force".
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...