24) In a redox reaction, the reactant that gets reduced is called an agent a) Ox

Question

24) In a redox reaction, the reactant that gets reduced is called an agent a) Oxidizing b) Reducing c) Manipulating spy fthe e) None of the above int 25) The internal energy of a system se a) Is the sum of the kinetic energy of all of its components b) Is the sum of the rotational, vibrational and translational energies of all of its components c) Refers only to the energies of the nuclei of the atoms and of the component molecules d) Is the sum of the potential and kinetic energies of the components e) Any of the above 26) Which one of the following is an endothermic process? a) Ice melting b) Water freezing c) Boiling soup d) Hydrochloric acid and barium hydroxide are mixed at 25°C, the temperature is increased e) Both a) and c) 27) Oxidation reaction always includes oxygen as one of the reactant FALSE TRUE 28) Combustion reaction always includes oxygen as one of the products FALSE TRUE while H for an exothermic process is(hint: enthalpy is the total energy of the system) a) Zero, positive b) Zero, negative c) Positive, zero 29) H (enthalpy) for an endothermic process is

Explanation / Answer

24. Oxidising agent because one who reduced itself in redox reaction oxidise the other.

25. All of the above

26. e

27. False. Because oxidation reaction also involve loss of hydrogen and loss of electron

28. False. Oxygen as one of the reactant not the product in the combustion reaction.

29. Enthalpy for endothermic reaction is positive and for exothermic process it is negative.

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