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Saline an example of which of the following solutions?b.Hyposmotic solutionc.Isotonic solution
6- Saline an example of which of the following solutions?b. Hyposmotic solutionc. Isotonic solution
a. Hyperosmotic solution
10- What is a catalyst?
a. A substance that increases the rate of a chemical reaction but is not consumed by the reaction.
b. A catalyst can participate either physically or chemically in a chemical reaction but ends up in the same form that it started.
c. A catalyst acts by lowering the Activation Energy needed to start the chemical reaction.
d. All the above.
11- Which of the following elements would make good artificial catalysts?
a. Ni, Pd, Ti,
b. O, Fl, N
c. Na, K, Ca
d. None of the above
12- Which of the following act as a catalysts in the human body?