Day 10 Class 7 Acids, Bases, and Salts

Multiple Choice

What are the products of a neutralisation reaction?

• Acid + Base

• Salt + Water

• Gas + Water

• Oxygen + Hydrogen

Open Ended

What are indicators used for in chemistry?

Multiple Choice

Which of these is a strong acid?

• Hydrochloric acid

• Sodium hydroxide

• Baking soda

• Vinegar

Multiple Choice

Which salt is formed when HCl reacts with NaOH?

• Na₂CO₃

• NaCl

• KOH

• CaCl₂

Open Ended

Give one real-life application of neutralisation.

Open Ended

Name one natural and one synthetic indicator.

Open Ended

Which topic from this chapter did you enjoy the most and why?

Multiple Choice

Which of these shows you’ve understood neutralisation well?

• Acid + Base → Salt + Water

• Acid + Salt → Base + Water

• Base + Water → Salt

• Acid + Oxygen → Gas

Open Ended

Which concept in this chapter do you still find difficult and why?

Open Ended

Summarise the chapter Acids, Bases and Salts in three sentences.

Multiple Choice

Which of these is an indicator?

• Water

• Litmus

• Salt

• Sugar

Open Ended

Draw and label the neutralisation reaction using HCl and NaOH.

Multiple Choice

Rainwater is naturally slightly acidic. What is its approximate pH?

• 2.0

• 5.6

• 7.0

• 9.2

Open Ended

How can you make a red cabbage indicator at home?