Question

1]A KNIFE,WHICH IS USED TO CUT A FRUIT,WAS IMMEDIATELY DIPPED INTO WATER CONTAINING DROPS OF BLUE LITMUS SOLUTION. IF THE COLOUR OF THE SOLUTION IS CHANGED TO RED, WHAT INFERENCE CAN BE DRAWN ABOUT THE NATURE OF THE FRUIT AND WHY? 2]GIVE THE CHEMICAL NAMES OF ACIDS PRESENT IN (1)ANTS (2)LEMON (3)MILK (4)TOMATO.

Answer 1

"  1. Since fruits are "acidic in nature" therefore when we dipped the knife in blue litmus solution it turns to red color. Hence we can inference the acidic nature of fruits as it turns blue litmus to red.  

  2. The chemical name of acids present in: a) Acid in Ants: Methanoic acid or formic acid. b) Acid in Lemon: Citric acid. c) Acid in Milk: Lactic acid. d) Acid in Tomato: Citric acid."

Answer 2

Answer:

Since fruits are "acidic in nature" therefore when we dipped the knife in blue litmus solution it turns to red color. Hence we can inference the acidic nature of fruits as it turns blue litmus to red.