Chemical Indicators Practice Questions

Ability to rust is this type of property:

• Physical property

• Chemical property

Tags

NGSS.MS-PS1-2

Which is not a clue that could indicate a chemical change?

• Change in color

• Change in shape

• Change in energy

• Change in odor

Tags

NGSS.MS-PS1-2

Which are indicators/evidence of a chemical reaction?

• produces gas

• produces a precipitate

• unexpected color change

• unexpected temperature change

• all of them

Tags

NGSS.MS-PS1-2

Indicators changes _______________ when mixed with acids and bases.

• shape

• colour

• state 

Tags

NGSS.MS-PS1-2

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator

• neutralizer

• corrosive

• electricity

What type of paper is used to test for acids and bases?

• Red paper

• Blue paper

• Lined paper

• Litmus paper

Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed.

• Yellow in both acid and base

• Yellow in acid and red in base

• Pink in acid and yellow in base

• Red in acid and blue in base

Tags

NGSS.MS-PS1-2

Red litmus paper will change to ___________ in a base.

• blue

• green

• black

• red

Blue litmus paper will change to ___________ in a acid.

• blue

• green

• black

• red

Tags

NGSS.MS-PS1-2

Red cabbage indicators will turn ___________ when mixed with an asid.

• blue

• green

• yellow

• red

Tags

NGSS.MS-PS1-2