Apples contain
Acetic Acid
Malic acid
Citric Acid
Lactic Acid
Acids react with metal to form
Oxygen
Carbon
Hydrogen
Carbon dioxide
Widely used acid is
Hydrochloric acid
Sulphuric acid
Tartaric acid
Acetic acid
Marble is
Potassium carbonate
Calcium carbonate
Sodium carbonate
Calcium bicarbonate
Who gave the name oxygen?
Justus Liebig
Henry Cavendish
Humphry Davy
Lavoisier
Pick the odd one out.
Iron
Copper
Aluminium
The acid present in ant.
Formic acid
Lactic acid
pH value of sugar is
3.0
8.5
7.0
6.5