acid and alkali

acid and alkali

3.1-3.2

Acids

Poll

what is the taste of acids

• salty

• sour

• sweet

Open Ended

name some acids?

alkali

opposite the acid

Poll

what the alkali feels like?

• sticky

• soppy

Open Ended

names some alkali?

Open Ended

what is the pH?

indicator

Open Ended

name two types of indicators?

Multiple Choice

What is an example of neutral

• Vinegar

• Water

• Milk

• Drain cleaner

Multiple Choice

Is it acid or alkali when the pH is 4 pH

• Acid

• Alkali

• Neutral

Multiple Choice

Sodium hydroxide is used

• to make fertilisers.

• to make battery.

• to cure gastritis.

• to make detergent.

Multiple Choice

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

• Phenolphtalein

• Universal indicator

• Methyl orange

• Litmus paper

Multiple Choice

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

• Sodium hydroxide

• Hydrochloric acid

• Sulphuric acid

• Nitric acid

Multiple Choice

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

• pH less than 7

• Tastes bitter

• Corrosive

• Turns blue litmus paper to red

Multiple Choice

What kind of acid is present in your stomach?

• Sulfuric acid

• Hydrochloric acid

• Citric acid

• Nitric acid

Multiple Choice

True or False: Acids with a low pH and bases with a high pH are considered very dangerous.

• True

• False

Multiple Choice

What colour does red litmus paper turn when added to an alkali?

• Blue

• Red

• Green

• Colourless

Multiple Choice

The color of litmus in acid:

• Red

• Blue

• Purple

• Green

Multiple Choice

Acid in soft drink:

• Hydrochloric acid

• Sulfuric acid

• Acetic acid

• Carbonic acid

Multiple Choice

What is the meaning of the above hazard warning symbol?

• Corrosive

• Explosive

• Toxic

• Radioactive

Multiple Choice

Reaction between acid and alkali producing salt and water:

• Combustion

• Neutralization

• Precipitation

• Decomposition