Preview (10 questions)
1 Question
30 másodperce
Q.

Thymol blue changes its color from red to _______ in base form.


Brown

Yellow

Violet

2 Question
30 másodperce
Q.

Litmus is an indicator that turns ______ in an acid solution.


Red

Green

Blue

3 Question
30 másodperce
Q.

Methyl orange shows _______ color in basic medium. 


Orange

Rose

Yellow

4 Question
30 másodperce
Q.

Alizarin turns into _______ in the pH range of 10.1.


Colorless

Yellow

Black

5 Question
30 másodperce
Q.

Turmeric turns ____ when it comes in contact with a basic solution.


White

Lilac

Red

6 Question
30 másodperce
Q.

Phenolphthalein does not change color in an acidic solution.


True

False

7 Question
30 másodperce
Q.

Blue litmus turns _______ in an acidic solution.


Yellow

Red

Green

8 Question
30 másodperce
Q.

Azolitmin changes its color from red to _______ in base form.


Blue

Olive

Maroon

9 Question
30 másodperce
Q.

Rosolic acid turns ______ in its base form.


Silver

Purple

Red

10 Question
30 másodperce
Q.

Phenolphthalein is a colorless solution, that turns ______ in its basic form.


Navy blue

Pink

Cyan