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# Four test-tubes were taken and marked A, B, C and D respectively. 2 mL of solution of $A{{l}_{2}}{{\left( S{{O}_{4}} \right)}_{3}}$in water was filled in each of the four test-tubes A, clean iron nail was put in test-tube B, clean copper wire was placed in test-tube D. It was observed that no change occurred in any of the test-tubes.(A) zinc is more active than aluminium(B) zinc is more active than copper(C) copper is more active than aluminium(D) zinc, iron and copper are less active than aluminium

Last updated date: 24th Jul 2024
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Hint: To solve this type of question it is very important to remember the reactivity series of elements. The reactivity series is used to provide information about the reactions of metals with water or acids or some displacement reactions.

Given in the question: Four test-tubes were taken and marked A, B, C and D respectively
2 mL of solution of $A{{l}_{2}}{{\left( S{{O}_{4}} \right)}_{3}}$ in water was filled in each of the four test-tube
-In test tube B clean iron nail was put
-In test-tube D clean copper wire was placed
Let’s understand what reactivity means, reactivity refers to the chemical reaction of one or more than one substances that interact with each other and form products. The reactivity series is mentioned below-
Potassium – k (most reactive)
Sodium – Na
Calcium - Ca
Magnesium - Mg
Aluminium - Al
Zinc - Zn
Iron - Fe
Tin - Sn