The neutron was discovered by: MCQ with Answer and Explanation

Explanation:
Enzymes are proteins with complex three-dimensional structures maintained by hydrogen bonds, ionic bonds, and hydrophobic interactions. Extremes of pH or high temperature disrupt these bonds, causing denaturation (loss of structure and function). Each enzyme has an optimum pH and temperature. For example, pepsin works in acidic stomach, trypsin in alkaline intestine.

Explanation:
Faraday's First Law of Electrolysis states that the mass of a substance deposited or liberated at an electrode is directly proportional to the total charge (Q) passed through the electrolyte (m = ZQ, where Z is the electrochemical equivalent). The Second Law relates mass to equivalent weight.

Explanation:
Metallic bonds are formed by the electrostatic attraction between positive metal ions and a 'sea' of delocalized valence electrons. These bonds are non-directional, which allows the metal ions to slide past one another without breaking the bond, explaining malleability and ductility. Therefore, statement C is incorrect.