Acid and Alkali

When you get a bee sting, what will you use to make you feel better ?

• Water

• Baking soda

• Milk

• Toothpaste

What is the meaning of the above hazard warning symbol?

• Corrosive

• Explosive

• Toxic

• Radioactive

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Acid in soft drink:

• Hydrochloric acid

• Sulfuric acid

• Acetic acid

• Carbonic acid

The color of litmus in acid:

• Red

• Blue

• Purple

• Green

Which of the following will change the red litmus paper to blue?

• Sodium hydroxide

• Hydrochloric acid

• Sulphuric acid

• Nitric acid

Which of the following indicator will show different colour in acid, neutral and alkali?

• Phenolphtalein

• Universal indicator

• Methyl orange

• Litmus paper

Sodium hydroxide is used

• to make fertilisers.

• to make battery.

• to cure gastritis.

• to make detergent.

Nitric acid + __________  $\rightarrow$  Sodium nitrate + Water

• Aluminium oxide

• Magnesium hydroxide

• Sodium hydroxide

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The technique used in neutralisation is called

• filtration.

• titration.

What is the example of alkaline substance

• bitter gourd

• lemon juice

• cooking oil

• mineral water