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Question

Match the following correctly.

a) PhenolphthaleinA)  Basic in natureb) AntacidB)  Acidic in naturec) LemonsC)  turns blue in basic solutionsd) Litmus solutionD) does not change colour in acidic solutions(E) turns red in basic solutions 
  1. a- C, b- B, c- A, d- D
  2. a- D, b- A, c- B, d- E
  3. a- E, b- B, c- A, d- E
  4. a- D, b- A, c- B, d- C


Solution

The correct option is D a- D, b- A, c- B, d- C
1) Phenolphthalein does not show any colour change in acidic solutions but turns pink in basic solutions.
2) Antacid contains the base, magnesium hydroxide.
3) Lemons contain citric acid.
4) Litmus solution turns blue in basic solutions and red in acidic solutions.
 

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