21. Which of the following is NOT a major source of protein?
A Fish
C. Milk
B. Egg
D Vegetables
22 Reactants combine to form a single product
A Combination
C. Double Displacement
B. Single Replacement D. Decomposition
23. This when oxygen combines with a hydrocarbon to form water and carbon d
A Combustion
C. Single Replacement
8. Acid-Base Reaction D Decomposition
24. The substance which combines or reacts in a chemical reaction is callea
A Product
C Enzymes
B. Reactant
D. None of these
25. The formation of the new substance is called as
A Product
C. Enzymes
B. Reactant
D. None of these​