Class – X

Subject – Science Practical Skills (Foreign)

1. A Student mixed some acetic acid with water. He would have observed the solution formed as:
   (1) Green and transparent
   (2) Pink and opaque
   (3) Yellow and transparent
   (4) Colourless and transparent

2. The chemical required in the experiment to show that carbon dioxide gas is released during respiration, is
   (1) Potassium bicarbonate
   (2) Potassium dichromate
   (3) Potassium Permanganate
   (4) Potassium hydroxide

Courtesy: cbse.nic.in