Acidity

What is the property of the substance based on the change in the colour of litmus paper?

• alkaline

• acidic

• neutral

Tags

NGSS.MS-PS1-2

What is the property of the substance based on the change in the colour of litmus paper

• neutral

• alkaline

• acidic

Tags

NGSS.MS-PS1-2

What is the property of the substance based on the change in the colour of litmus paper?

• acidic

• alkaline

• neutral

Tags

NGSS.MS-PS1-2

What are the examples of alkaline solution?

• Hydrochloric acid

• Sodium hydroxide solution

• Vinegar

• Soap water

What are the examples of acid ?

• Sodium hydroxide solution

• Soap water

• Hydrochloric acid

• Vinegar

Acids

• pH value less than 7

• Tastes bitter

• Corrosive

• Reacts with metals to produce hydrogen gas

Alkali

• pH value more than 7

• Tastes bitter

• Corrosive

• Tastes sour

Uses of acids and alkalis in daily life are

• agricultural

• industrial

• medical

• electrical

Tags

NGSS.MS-PS1-2

Which of the following are the indicators used to determine acidic and alkaline substances?

• Blue litmus paper and red litmus paper

• Universal indicator

• Methyl orange

• Phenolphthalein

A substance can be classified as acid if it can produce

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