Exploring Acids and Alkalis

What is the pH value of a neutral solution?

• 0

• 7

• 14

• 10

Which of the following is a common property of acids?

• Bitter taste

• Slippery feel

• Sour taste

• Sweet taste

Which of the following substances is an alkali?

• Lemon juice

• Vinegar

• Baking soda

• Distilled water

What is the chemical formula for hydrochloric acid?

• HCl

• H2SO4

• HNO3

• CH3COOH

Which of the following is a strong acid?

• Citric acid

• Hydrochloric acid

• Acetic acid

• Carbonic acid

What is the pH range of alkalis?

• 0-6

• 7-14

• 8-14

• 1-7

Which of the following is a weak alkali?

• Sodium hydroxide

• Ammonia

• Potassium hydroxide

• Calcium hydroxide

What is the main component of vinegar?

• Citric acid

• Acetic acid

• Sulphuric acid

• Hydrochloric acid

Which of the following is a use of alkalis?

• Preserving food

• Neutralising stomach acid

• Making explosives

• Dyeing fabrics

What is the chemical formula for sodium hydroxide?

• NaCl

• NaOH

• Na2CO3

• NaHCO3