Abuja — The West African Examinations Council (WAEC) has postponed the full implementation of the computer-based test (CBT) format for the 2026 Senior School Certificate Examination (SSCE) until 2027, according to a statement released at the council’s 63rd annual meeting in Umuahia, Abia State. Hajia Binta Abdulkadir, Chairman of WAEC’s Nigeria National Committee, explained that the 2026 May/June edition will now serve as a pilot phase — allowing candidates to sit for either the traditional paper-and-pen test or the digital format. She emphasized that no student will be disadvantaged by the transition. The delay follows widespread concern over the readiness of many schools, particularly in rural areas, for full digital exams. Many institutions lack adequate computers, reliable electricity, internet connectivity, and trained personnel—factors WAEC and the Federal Ministry of Education say are essential for a successful rollout. To facilitate the switch, WAEC co...
Calcium trioxonitrate V salt is a white deliquescent tetrahydrate crystal, Ca(NO 3 ) 2 . 4H 2 O. it is very soluble in water. In the qualitative analysis of calcium trioxonitrate V, the ions present are calcium ion and trioxonitrate V radical. So, the basic methods of identifying these ions in their compounds are employed. How to identify Calcium ion in an unknown compound or solution Calcium ion can be identified by its action or reaction with · Aqueous ammonia · Sodium hydroxide · Ammonium ethanedioate · Ammonium trioxocarbonate IV Test with aqueous ammonia Calcium does not show any visible reaction with aqueous ammonia both in drops of aqueous ammonia and in excess of the aqueous solution. Test with Sodium hydroxide If an unknown solution contain calcium ion, it will form white precipitat...