Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Science CBSE
Class 7
Acids, bases and salts
Textbook questions
14.
NCERT Exemplar III
Exercise condition:
2
m.
1.
Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed
Red in acid and blue in base
Pink in acid and yellow in base
Yellow in acid and red in base
Yellow in both acid and base
2.
Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are
pink and colourless
red and blue
blue and red
colourless and pink
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!