Chemistry MCQs Part 13
A. Chemical
B. Dynamic
C. Static
D. Physical
122. In a chemical equation, a double arrow indicates.?
A. Reversible reaction
B. Complete reaction
C. Incomplete reaction
D. Equilibrium
123. Acetylene when burnt in oxygen produces heat and.?
A. Electricity
B. Current
C. Mechanical work
D. Light
124. In the endothermic reactions, the heat is.?
A. Evolved
B. Generated
C. Absorbed
D. Released
125. Water placed in closed container at constant temperature.?
A. Evaporates
B. Condenses
C. Is at equilibrium
D. Reacts
126. The mechanical work obtained from automobile engines is due to.?
A. Combustion process
B. Oxidation process
C. Reduction process
D. Catalytic process
127. When a part of heat of reaction is used in generating electric current the device is called.?
A. Cell
B. Galvanic cell
C. Electrolytic cell
D. Dry cell
128. The branch of chemistry that deals with thermal energy changes in chemical reactions is called.?
A. Thermo
B. Dynamics
C. Thermo chemistry
D. Thermodynamics
129. The using of fuels is the basis that burning of carbon in oxygen produces.?
A. Energy
B. Light
C. Heat
D. Electricity
130. The burning of methane in oxygen is used in.?
A. Kitchens
B. Flames
C. Automobiles
D. Engines
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