by Sunday | Sep 15 | Chemistry JAMB
A. sp² hybridized B. sp³ hybridized C. sp4 hybridized D. sp hybridized Correct Answer: Option B – sp³ hybridized Explanation Alkane’s family are sp³ hybridized
by Sunday | Sep 15 | Chemistry JAMB
A. Fe³+ (H2O)6 B. FeO.H2O C. Fe2O3.3H2O D. Fe3O4.2H2O Correct Answer: Option C – Fe2O3.3H2O Explanation Iron [Fe] reacts with H2 in the presence of oxygen to form a rust. 4Fe + 3O2 → 2Fe2O3 Fe2O3 + H2O →...
by Sunday | Sep 15 | Chemistry JAMB
Cu2S(g) + O2(g) → 2Cu + SO2(g) A. 0 to + 2 B. 0 to + 1 C. + 1 to 0 D. + 2 to + 1 Correct Answer: Option C = + 1 to 0 Explanation In the reactant; Cu2S 2Cu – 2(1) = 0 2Cu = 2 Cu = 2/2 Cu = +1 In the product, Cu Cu = O The oxidation number of Cu in Cu2S and Cu...
by Sunday | Sep 15 | Chemistry JAMB
A. CnH2n B. CnH2n−2 C. CnH2n+1 D. CnH2n+2 Correct Answer: Option C – CnH2n+1 Explanation Alkyl group has the general formula CnH2n+1. This formed when one hydrogen is removed from the alkane family. It has the general formula CnH2n +...
by Sunday | Sep 15 | Chemistry JAMB
A. amylase B. diastatse C. invertase D. zymase Correct Answer: Option A – amylase Explanation This is any amylase or a mixture of amylases that converts starch to dextrin and maltose.
by Sunday | Sep 15 | Chemistry JAMB
A. oxidation reaction B. addition reaction C. hydrogenation reaction D. substitution reaction Correct Answer: Option D – substitution reaction Explanation Alkanes undergoes substitution reaction and it is an example of halogenation substitution reaction....
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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