iGCSE acids revision

Which of the following is NOT a characteristic of an acid?

• sour taste
• corrosive
• it feels slippery
• it can burn the skin

Which is the correct set of acid properties?

• sour taste, corrosive, change litmus from red to blue

• sour taste, corrosive, change litmus from blue to red

• sweet taste, slippery, change litmus from blue to red

• sour taste, slippery, change litmus from blue to red

Taste sour

• acids

• bases

• neutral

• pH scale

When dissolved in water, acids produce:

• bases
• salts
• hydrogen ions
• hydroxide ions

Bases release ____________ ions when they break down or dissociate. 

• Hydrogen (H+)
• Hydroxide (OH-)
• Chlorine (Cl-)
• no

What is the formula for hydrochloric acid?

• HCl
• HClO
• H₃ClO₃
• HClO₃

What is the formula for nitric acid?

• HNO₂
• HNO₃
• HNO₄
• H₂NO₃

HCl is found in household products, including some toilet bowl cleaners. Is HCl an acid or a base?

• Acid

• Base

• Neither (Neutral)

Tags

NGSS.MS-PS1-2

Vinegar, fruit juice, and cola are examples of:

• strong acids

• strong bases

• strong bases

• weak acids

Tags

NGSS.MS-PS1-2

Is laundry detergent an acid or a base?

• Acid

• Base

• Neither (Neutral)

Tags

NGSS.MS-PS1-2