iC6.1 DIRT

What harmful effects are associated with acids?

• Toxic

• Carcinogenic

• Corrosive

• They burn

A solution is added to universal indicator, the universal indicator turns a deep purple. What does this suggest?

• Strong Alkali

• Weak Alkali

• Weak acid

• Neutral

Select the correct formula for Nitric acid

• HNO₃

• H₂SO₄

• HCl

• CH₃COOH

Select the PH value that would be seen if measuring the PH of a weak acid.

• 8

• 7

• 1

• 5

Which of the following when tested would turn universal indicator green?

• Milk

• Lemon Juice

• Bleach

• Pure water

Which of the following salts are made from a reaction with Nitric acid?

• Sodium Nitrate

• Sodium Sulphate

• Sodium Chloride

• Sodium Nitride

Which of the following are alkalis? 

• Iron Nitrate

• Sodium Hydroxide

• Potassium Hydroxide

• Sodium Sulfate

Which of the following are salts made from sodium hydroxide? 

• Copper Nitrate

• Calcium Chloride

• Magnesium Sulphate

• Sodium Sulphate

Potassium Hydroxide reacts with Sulfuric acid what colour might you expect universal indicator to turn when added to the reaction mixture?

• Blue

• Green

• Yellow

• Red

• Sulphur Hydroxide + Water

• Hydroxide Acid + Water

• Sodium Sulphate + Water

• Sodium Sulphur + Water