How Many Grams of CuS Are Obtained by Passing a Current

question 57

Multiple Choice

How many grams of CuS are obtained by passing a current of 12 A through a solution of CuSO₄ for 15 minutes ?

• A) 7.1
• B) 14
• C) 1.8
• D) 3.6
• E) 0.016

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Definitions:

Alkaline Earth Metals

Alkaline earth metals are a group of elements in the second column of the periodic table, characterized by their metallic properties and two valence electrons.

Transition Metals

Elements found in the middle of the periodic table that are characterized by their ability to form compounds with variable oxidation states and colored compounds.

Noble Gases

Inert gaseous elements that belong to Group 18 of the periodic table, known for their lack of chemical reactivity.

Halogens

A group of elements found in Group 17 of the periodic table, characterized by their high reactivities and tendencies to form salts with metals.