मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Fill in the Blank. the Chemical Change Involving Iron and Hydrochloric Acid Illustrates a ...............Reaction.

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प्रश्न

Fill in the blank.

The chemical change involving iron and hydrochloric acid illustrates a ...............reaction.

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उत्तर

 The chemical change involving iron and hydrochloric acid illustrates a displacementreaction.

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पाठ 6: Chemical Reactions - Exercise 2 [पृष्ठ ८५]

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एस.पी. सिंह Concise Chemistry [English] Class 8 ICSE
पाठ 6 Chemical Reactions
Exercise 2 | Q 1.06 | पृष्ठ ८५

संबंधित प्रश्‍न

The reddish brown deposit formed on iron nails kept in a solution of copper sulphate is

  1. Cu2O
  2. Cu
  3. CuO
  4. CuS

What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.


What happens when a zinc strip is dipped into a copper sulphate solution?

  1. Write the equation for the reaction that takes place.
  2. Name the type of reaction involved.

Explain the following type of chemical reaction, giving two examples for it:

Displacement reaction


The colour of an aqueous solution of zinc sulphate as observed in the laboratory is:

(1) Green 

(2) Yellow 

(3) Blue 

(4) Colourless


i) Observe the following reaction and answer the following questions.
`CuSO_4 (aq) + Fe (s) →  FeSO_4(aq) + Cu (s)`
a) Identify and write the type of chemical reaction.
b) Write the definition of above reaction.


What is observed after about 1 hour of adding the strips of copper and aluminium separately to the ferrous sulphate solution filled in two beakers? Name the reaction if any change in colour is noticed. Also, write a chemical equation for the reaction.


Classify the following reaction into – 

  1. Direct combination 
  2. Decomposition
  3. Displacement
  4. Double decomposition

The reaction is – Zinc reacts with copper [II] sulphate to give zinc sulphate and copper.


Which of the following is a displacement reaction?


State the change in colour observed in following case mentioning the reason:

A piece of zinc is dipped in ferrous sulphate solution.


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