Ease Practice 7 Class

what is the properties of acid?

• Corrosive, tangy taste, and irritant

• Soapy and dangerous

• harmful, only founf in laboratory, and dangerous for environment

• it has bitter taste

Doni has some kind of liquid in the bottle. Doni curious about the liquid and he try to touch and rub it on his hand. it feels soapy and has a bitter taste. what is the liquid..?

• Base liquid

• Acid liquid

Harmful, Corrosive, and Irritant are the properties of ........... compound

• Strong Acid and Base

• Weak acid

• weak base

i have a fruit. it turn litmus paper to red,. the fruit has the properties of..

• Alkali

• Acid

Red cabbage juice can be used as an indicator for alkali and acid. what is indicator..?

• any substance that has beautiful colour in acid and alkali

• any things or substance that has different colour in alkali an acid

• they have the same colour in acid and alkali

it shows how acidic or alkaline a substance is definition of..?

• Universal Indicator

• Litmus Indicator

• Indicator

what is the pH of a neutral solution?

• 4

• 5

• 7

• 8

• 9

what colour does universal indicator go in a liquid with a pH of 9?

• Blue

• Yellow

• red

• Orange

Acid and alkalis can cancel each other out. when you mix them together they make a neutral solution. this called

• neutralisation

• mixture

• acid alkali substance

what colour is universal indicator when the solution is neutral?

• Green

• Red

• Blue