Acids and Bases

what happens when acids and basis mix?

• acid becomes stronger

• basis become stronger

• it neutralizes

• none of the above

what colour do you get when you dip a china rose indicator into a base solution and acid solution respectively?

• basic-red , acid-pink

• basic-green , acid-bright pink/magenta

• basic-blue , acid-red

• basic-pink/magenta , acid-green

what colour do we get when we dip red litmus paper into basic solution?

• blue

• pink

• black

• red

what colour does the phenolphthalein give when lemon juices is added to it?

• colourless

• pink

• blue

• green

What is the effect of adding an acid to a base?

• The solution becomes more acidic.

• The solution becomes more basic.

• The solution becomes neutral.

• The solution remains unchanged.

Tags

DOK Level 2: Skill/Concept

Which of the following is a property of both acids and bases?

• They both taste sour.

• They both feel slippery.

• They both conduct electricity.

• They both turn litmus paper the same color.

Tags

DOK Level 2: Skill/Concept

what is the formula of hydrochloric acid?

• HCL

• NaOH

• both

• none of the above

THE MOST COMMONLY USED NATURAL INDICATOR IS LITMUS. FORM WHERE IS IT EXTRACTED?

• lichens

• algae

• yeast

• amoeba

what should we put in the soil if the soil gets too acidic?

• (a)quick lime

• (b) slaked lime

• none of the above

• both (a) and (b)

Tags

NGSS.MS-PS1-2

In neutralization reaction a new substance is formed. this is called?

• sugar

• salt

• starch

• carbohydrates

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5