Question

On putting few drops of an unknown liquid on pH strip, the colour of pH strip changed to green. The liquid taken is likely to be (1) water (2) dilute hydrochloric acid (3) lemon juice (4) dilute sodium hydroxide solution

Answer 1

 Answer: (1) The green colour of the pH strip indicates that the liquid is neither acidic nor basic; it is neutral. Water is a neutral liquid (pH = 7). Hence, the liquid is likely to be water.

Answer 2

Answer:

Water

Explanation:

The green colour on the pH strip represent that the solution is neither acid nor basic. pH strips are used to check whether the solution is acidic, basic or neutral. It contains reading from 0 to 14. 0 to 6 represent red colour and red colour denotes acidic nature of the solution. 8 to 14 represent blue colour which represent basic nature of the liquid. 7 represent neutral nature of the solution.