Group 5 Acid and base

When blue litmus paper dipped into a solution that the Ph is under 7. What will the color change into? 

• Red

• Purple

• Black

• Blue

When blue litmus paper dipped into a solution that the Ph is under 7. What will the color change into? 

• Blue

• Pink

• Purple

• Green

When a red litmus paper touches a solution with a Ph of under 7. What will the color change into?

• Yellow

• Green

• Brown

• Red

A red litmus paper touches vinegar but it does not change color. That means vinegar is 

• Acid

• Base

• Neutral

• Both Acid and base

When blue litmus paper touches blood. The blue litmus paper did not change color that means the blood is...

• Base

• Acid

• Neutral

• Both Acid and base

What color does the blue litmus turn after touching base

• Green

• Black

• Red

• Stays the same

What does HCI stand for

• Histocompatibility Cyberpsychology Infectious 

• Acid Hydrogen Chloride 

• Hydrochloric Chloride Invitro

• Hydrogen Cyberpsychology Invitro

If u touch a hydrochloric acid, what will happen to your hand?

• Chemical Burns

• Irritated

• Swollen

• Became soft

Which indicator shows the most accurate answer? 

• Natural indicatot

• Green litmus paper

• Universal Indicator 

• Blue litmus paper

If a substance has 12 PH, what substance is that? 

• Acid

• Base

• Neutral

• Spicy sauce