Subject :NSO Class : Class 7
Rima prepared an indicator paper by dipping a paper strip in a solution of X. She put a few drops of an unknown solution Y which contains H+ ions less than OH– ions on this paper. She observed that the colour of paper turned yellow. What do you think was solution X?
A Red litmus solution
B Phenolphthalein
C Methyl orange
D Turmeric solution
PL EXPLAIN WHAT IS H ions AND OH-ions IN THIS QUESTION
Ans 1:
Class : Class 9
i agree@anurag
Ans 2:
Class : Class 9
base turns yellow with methyl orange.
Ans 3:
Class : Class 9
I think the answer is C. If it contains H+ ions less than OH- ions, the substance is a base.