TEST-01

Neutralization reactions

• formed from joining positive and negative ions 
• increases OH ions
• froms a salt and water
• increases H2O ions

What happens when a solution of an acid is mixed with a solution of a base in a test tube?

• temperature of the solution increases 
• temperature of the solution decreases
• temperature remains constant
• no reaction

Which of the following is also called slaked lime

• KOH

• Ca[OH]₂

• NaOH

• NH₄OH

When hydrogen chloride gas is prepared on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to -

• Absorb the evolved gas

• Moisten the gas

• Absorb moisture from the gas

• Absorb Cl^– ions from the evolved gas

An extremely strong acid would have a pH of...

• 1
• 7
• 9
• 14