Reaction of Metals with Acids

Reactive Metals like Aluminium,Magnesium react with acids to produce Metal Salts + Hydrogen Gas

Reaction of Metal with Acid.jpg

 

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Why is Aluminium not used to store food items

It is because Aluminium is a reactive metal

It reacts with acids contained in food to form toxic salts

 

Reaction of less reactive metals with Acids

Less reactive metals do not react with dilute acids

Example

Copper, Silver and Gold do not react with Dilute Acids


Reaction of Non-Metals with Acids

Non Metals do not react  with Acids

Reaction of non metal with Acid.jpg

Example

If we take Sulphur powder and add hydrochloric acid,no Hydrogen gas is produced

 

Questions

NCERT Question 3 -

Fill in the blanks :

(d) Metals react with acids to produce……………….. gas.

Answer

 

NCERT Question 3 -

Fill in the blanks :

(c) Iron………………... is reactive than copper.

Answer

 

NCERT Question 4 -

Mark ‘T’ if the statement is true and ‘F’ if it is false.

(a) Generally, non-metals react with acids. ( )

Answer

 

 

NCERT Question 7 -

Can you store lemon pickle in an aluminium utensil? Explain. 

Answer

 

  1. Class 8
  2. Chapter 4 Class 8 - Materials : Metals And Non-Metals

Transcript

Reaction of Metal with Acid Metal + Acid Metal Salt + Hydrogen Example Magnesium + Hydrochloric Acid Magnesium Chloride + Hydrogen Gas (Mg) (HCI) (MgCl 2) (H2) This is a Metal Salt Aluminum + Hydrochloric Acid Aluminum Chloride + Hydrogen Gas (AI) (HCI) (AlCl3) (H2) This is a Metal Salt Reaction of Non-Metal with Acid Non Metal + Acid No Reaction Example Sulphur + Hydrochloric Acid (S) (HCI) No Reaction

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.