Welcome to Schoolngr.com

Home   School   News   C B T   Classroom
Friday, 22 November 2024

RegisterLogin

(a)(i) Define ionic bond. (ii) What type of bond (s) exist (s) in: I. magnesium oxide; ...

(a)(i) Define ionic bond.
(ii) What type of bond (s) exist (s) in: I. magnesium oxide; II. ammonium ion?

(b) Determine the oxidation number of sulphur in Na\(_2\)S\(_2\)O\(_2\).

(c) State Faraday's first law.

(d) Give one example each of: (i) acid salt; (ii) base salt.

(e) Name the type of energy change that occurs in each of the following processes
(i) I\(_{2(s)}\) \(\to\) I\(_{2(g)}\)
(ii) Cl\(_{(g)}\) + e\(^{-}\) \(\to\) Cl\(^{-_(g)}\)

(f) State the effect of each of the following aqueous solutions on litmus paper: (i) Na\(_2\)SO\(_{4(aq)}\) (ii) AlCl\(_{3(aq)}\)

(g) Define the term efflorescence.

(h) Give two uses of activated charcoal.

(i) State one use of each of the following processes in the chemical industry: (i) hydrogenation of vegetable oil; (ii) cracking; (iii) esterification.

(j) Calculate the amount of silver deposited in moles when 10920 coulombs of electricity is passed through a solution of a silver salt. [ Faraday constant-- 96500 C mol\(^{-1}\)]



STAY UPDATED
FOLLOW US ON :


AboutContact usBack to Top
...

Disclaimer
All Views, Names, Acronyms, Trademarks, Expressed on this website are those of their respective owners. Please note that www.schoolngr.com is not affiliated with any of the institutions featured in this website. It is always recommended to visit an institutions or sources official website for more information. In the same vein, all comments placed here do not represent the opinion of schoolngr.com


SCHOOLNGR - © 2020 - 2024 - Tayo Hammed | Terms Of Service | Copyright | Privacy Policy