Arrange the following metals in the increasing order of their reactivities: Copper, Zinc, Aluminium, and Iron - Science

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Arrange the following metals in the increasing order of their reactivities:

Copper, Zinc, Aluminium, and Iron



Among the following given metals, aluminum is most reactive and copper is least reactive in nature. The reactivity order of the given metals is Al>Zn>Fe>Cu.

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2018-2019 (March) 31/4/2


.................... liberated when acetic acid reacts with sodium metal.
(a) Hydrogen
(b) Chlorine
(c) Oxygen
(d) Nitrogen

A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green

Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.

_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3

Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium

Name the following:
Metals which forms an amphoteric oxide.

‘E’ is an element which reacts with oxygen to form an oxide E2O. An aqueous solution of E2O turns red litmus blue, so:
i. What is the nature of oxide E2O ?
ii. Write the name of element ‘E’.

 Write equations for the reactions of calcium and potassium with water

 Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows.

Metal Iron (II) sulphate Cooper (II) sulphate Zinc sulphate Silver nitrate
A. No reaction Displacement    
B. Displacement   No reaction  
C. No reaction No reaction No reaction Displacement
D. No reaction No reaction No reaction No reaction

Use the Table above to answer the following questions about metals A, B, C and D.
(i) Which is the most reactive metal?
(ii) What would you observe if B is added to a solution of copper (II) sulphate?
(iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.

What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.

The solution of Aluminium sulphate in water is .....................

(a) Green

(b) Colourless

(c) Pink

(d) Blue

The reaction of an iron nail with copper sulphate solution is ........... reaction.

(a) Combination

(b) Displacement

(c) Double displacement

(d) Decomposition

A solution of _________________ in water is green in colour.

(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3

Explain the following reaction with the help of a balanced chemical equation:
Magnesium reacts with hot water.

Name the metal which has been placed just below copper in the reactivity series.

Which of the following elements would yield an acidic oxide.

Na, S, C, K, H

Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.

Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.

Why does aluminium not react with water under ordinary conditions?

Choose the correct alternative and rewrite the following:

Which of the following is lue in colour?

Write the chemical equation of the above process.

Rewrite the following statement by selecting the correct option.
A solution of Al2(SO4)3 in water is _____________.

Answer the following question:
An element X on reacting with oxygen forms an oxide X2O. This oxide dissolves in water and turns red litmus blue. State whether element X is metal or a non - metal. Explain with a proper example. 

Write the chemical equation for the following reaction:
Cinnabar is heated in the presence of air.

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

  1. Good thermal conductivity
  2. Good electrical conductivity
  3. Ductility
  4.  High melting point

Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?

Which of the following property is not responsible for copper to be used as electrical conduction wires?

Find the odd one out:

Tungsten wire is used in electric bulbs.


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