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What are acids ? What happens when acids reacts with . A)metals B)base C)metal carbonate D)metal bicarbonate

Posted by Nishant Choudhary 5 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 3 months ago

Acids: The word ‘Acid’ came from Latin word ‘Acidus or Acere’ which means sour.

Sour taste is the most common characteristic of acid. Acid turns blue litmus paper red. There are many substances which contain acid and hence taste sour, such as curd, tamarind, lemon, etc.

Reaction of acids with metal:

Acids give hydrogen gas along with respective salt when they react with a metal.

Metal + Acid → Salt + Hydrogen

Example: Hydrogen gas and zinc chloride are formed when hydrochloric acid reacts with zinc metal.

Zn + 2HCl →ZnCl₂ + H₂

Reaction of acids with metal carbonate:

Acids give carbon dioxide gas and respective salts along with water when they react with metal carbonates.

Metal carbonate + Acid → Salt + Carbon dioxide + Water

Examples: Hydrochloric acid gives carbon dioxide gas, sodium chloride along with water when it reacts with sodium carbonate.

Na₂CO₃ + 2HCl → 2NaCl + CO₂ + H₂O

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