Breaking of chemical bond is a
Exothermic reaction
Endothermic reaction
Calcination reaction
Combustion reaction
The optimum temperature in the manufacture of ammonia
450oC
300oC
400oC
150oC
The heat of neutralization of strong acid reacting with a strong alkali is
-31 kJ/mol
-57 kJ/mol
-68KJ/mol
-33 KJ/mol
The minimum amount of energy needed to begin to break bonds
Threshold energy
Activation energy
Heat enthalpy
Entropy
The principle used in equilibrium system to yield better product
Avogadro's law
Lussac's law
Ideal gas law
Le chatlier's Principle
The metals most commonly used as catalysts
Alkali metals
Alkaline earth metals
Transition elements
Halogens
The green pigment present in the leaves of plants in
Vat dye
Phenolphthalein
Chlorophyll
Chloroform
The enzyme in blood and liver that convents hydrogen peroxide into harmless water and oxygen
Zymase
Catalase
Invertase
Lactase