121. At dynamic equilibrium?
(a) The reverse reaction
(b) The forward reaction stops both forward and reverse reactions stop
(c) Both forward and reverse reactions continue at the same rate
122. A reversible have the following characteristic EXCEPT?
(a) They proceeds in both direction
(b) They never complete
(c) Products do not form reactants again
(d) None of these
123. The equilibrium constant (Kc) is?
(a) The sum of two reactants
(b) The difference of the two rate constants
(c) The ratio of the two rate constants
(d) The product of the two rate constants
124. When the value of Kc is very small it shows that?
(a) Reaction will go in the forward direction
(b) Reaction will go in the reverse direction
(c) Reaction is the equilibrium
(d) Equilibrium will never establish
125. When the value of Kc is very large it shows that?
(a) Reaction is at equilibrium
(b) Equilibrium will never be achieved
(c) Reaction will move in the forward direction
(d) Reaction will move in the reverse direction
126. Active mass means?
(A) The sum of the reactant masses.
(b) The overall bulk of the goods
(c) The combined mass of the reactants and products
(d) Concentration of reactants and products in a diluted solution, expressed in moles per dm3.
127. Sour milk contains?
(a) Lactic acid
(b) Formic acid
(c) Malic acid
(d) Tartaric acid
128. Apples contain?
(a) Lactic acid
(b) Formic acid
(c) Malic acid
(d) Tartaric acid
129. Grape juice contains?
(a) Lactic acid
(b) Formic acid
(b) Malic acid
(d) Tartaric acid
130. The substance produced by ants is an acid called?
(a) Malic acid
(b) Tartaric acid
(c) Lactic acid
(d) Formic acid
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