Acid and Alkali

• PH scale

• pH ruler

• pH scale

• pH statistical tables

Tags

NGSS.MS-PS1-2

Tell 3 things that contain acid

• Lemon, baking soda, water

• Detergent, tomato, vinegar

• Vinegar, hand soap, drain cleaner

• Vinegar, oranges, milk

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

• Water

• Baking soda

• Oranges

• Toothpaste

Which of the following about properties of acid is not true?

• pH less than 7

• Tastes bitter

• Corrosive

• Turns blue litmus paper to red

Acid reacts with metal to produce ___________ gas.

• oxygen

• carbon dioxide

• hydrogen

• nitrogen dioxide

Tags

NGSS.MS-PS1-2

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

• Phenolphtalein

• Universal indicator

• Methyl orange

• Litmus paper

__________ is used to make fizzy drink.

• Vinegar

• Sulfuric acid

• Carbonic acid

• Acetic acid

Sodium hydroxide is used

• to make fertilisers.

• to make battery.

• to cure gastritis.

• to make detergent.

The chemical reaction between an acid and alkali is called

• digestion.

• combustion.

• neutralisation.

• photosynthesis.

Hydrochloric acid + Sodium hyroxide  $\rightarrow$   ____________ + Water

• Sodium sulphate

• Sodium chloride

• Sodium nitrate

Tags

NGSS.MS-PS1-2