by Sunday | Aug 22 | Chemistry WAEC
A. 42 B. 45 C. 126 D. 180 E. 145 Correct Answer: Option D – 180 Explanation Empirical formula = CH2O = 12 + (2 x 1) + 16 = 30 Molecular formula = (CH2O)n, where n is a whole number. = 30n ∴ From the options, only 180 is a multiple of 30. Hence, that is the only...
by Sunday | Aug 22 | Chemistry
A. zinc oxide B. lead (ll) oxide C. aluminium oxide D. tin (IV) oxide E. carbon (IV) oxide Correct Answer: Option E – carbon (IV) oxide
by Sunday | Aug 22 | Chemistry WAEC
A. Na2CO3.10H2O B. CuSO4. 5H2O C. MgSO4. 7H2O D. CaCI2.2H2O E. Na2SO4. 10H2O Correct Answer: Option A – Na2CO3.10H2O
by Sunday | Aug 22 | Chemistry WAEC
A. Sodium trioxonitrate (V) B. Potassium trioxonitrate (V) C. Silver trioxonitrate (V) D. Lead (ll) trrioxonitrate(V) E. Aluminium trioxonitrate (V) Correct Answer: Option C – Silver trioxonitrate (V)
by Sunday | Aug 22 | Chemistry WAEC
A. bleaching powder B. chlorinated water C. hydrochloric acid D. oxochlorate (l) acid E. trioxochlorate (V) salt Correct Answer: Option A – bleaching powder
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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