Acidity and Alkalinity

What is the meaning of 'pH'?

• Positive ion of Hydrogen
• Potential of Hydrogen
• Product of Hydroxide
• None of the above

What is the pH of an acid and a base respectively?

• pH 3 & 7
• pH 9 & 11
• pH 5 & 8
• pH 2.35 & 5.98

Which acid is the strongest?

• Hydrochloric Acid
• Ethanoic acid

Which ion determines a base?

• H⁺
• OH^-
• OH⁺
• CO_3^2-

What is the pH of an extremely strong acid?

• pH 0
• pH 7
• pH 13
• pH 2

Which statements are properties of an acid?
1. Reacts with ammonium sulfate to form ammonia
2. Turns red litmus blue

• 1 & 2
• 1 only
• 2 only
• Both of them are wrong

Tick the substances that are acidic (You can select more than one answer)

• Tooth paste

• Lime water

• Liquid soap

• Tomato sauce

What other laboratory substance can you use to test if colourless substance is an acid or an alkali?

• Catalyst

• Salt

• Universal Indicator

• Water

The products of a neutralisation reaction are lithium sulfate and water. What is the name of the acid used to neutralise the alkali lithium hydroxide?

• hydrochloric acid
• sulfuric acid
• nitric acid
• phosphoric acid

Which reactants are used to produce sodium chloride (salt and water)

• sodium hydroxide and nitric acid
• sodium hydroxide and sulfuric acid
• sodium hydroxide and phosphoric acid 
• sodium hydroxide and hydrochloric acid