Millionaire Mode

Acids, Bases and Indicators

Question 1 of 5

A group of students was doing an experiment using sodium hydroxide and dilute hydrochloric acid. They added phenolphthalein indicator, which gave the solution a pink colour. As more and more dilute hydrochloric acid was added to it, drop by drop, at one point a colour change was noted. This happened due to neutralisation reaction. The colour changes from pink to _________.

  1. blue
  2. green
  3. red
  4. violet
  5. colourless

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000