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MCQ- 31
If a strip of Cu metal is placed in a solution of FeSO₄
A. Cu will be precipitated out
B. Fe will be precipitated out
C. Cu and Fe both dissolve
D. No reaction take place

Answer: D

MCQ- 32
The reaction proceeds through the evolution of heat
A. Atomization
B. Electrolysis
C. Hybridization
D. Ionization

Answer: C

MCQ- 33
According to the first law of thermodynamics energy from the system to the surrounding can be transferred in the form of _________
A. Heat and work
B. Heat
C. Kinetic Energy and Pressure
D. Displacement and Heat

Answer: A

MCQ- 34
The total heat content of the system is
A. Internal energy
B. Enthalpy
C. K.E of the system
D. Free energy

Answer: B

MCQ- 35
Boiling of water is ______ change
A. Endothermic
B. Non-energetic
C. Exothermic
D. Spontaneous

Answer: A