2025 Third term Mid term Test on Chemistry JSS 2

Welcome to your 2025 Third term Mid term Test on Chemistry JSS 2

Who is the father of electrolysis?

M-shell has ...... as the maximum number of electrons.

An element X has 1s² 2s² configuration which group does it belong to?

The Atomic number of Chlorine is

How many electrons are there in the outermost shell of a group 4 element?

In an electrolytic cell, the electrode at which the electrons leave the solution is called the ......

Hydrochloric acid is decomposed into hydrogen and chlorine by means of an electric current passed through the process of ........

Electroplating takes place when ........ Is passed into the electrolyte.

A compound that does not conduct electricity either in molten or solution form is a/an ........

Which of the following is mostly used as an inert electrode during electrolysis?

Subjective

............ and ............. forms the nucleus of an atom.

1S² 2S² 2P⁶ 3S¹ is for ............

............ and ............. are factors that affect the preferential discharge of ions.

Essay Answer Only Two Questions

1a. What is Electronic Configuration? 1b. Show the shell format configuration of i silicon ii calcium 1c. What is degenerated orbital?

2a. State Aufbau principle 2b. Write the SPDF configuration of i Aluminum ii Sulphur 2c. State Hund's rule as regards to orbital diagrams of elements

3a. Explain Electrolysis 3b. Differentiate between electrolyte and non-electrolyte 3c. Draw an electrolytic cell

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