A. environment
B. surrounding
C. state function
D. enthalpy

A. State function
B. phase
C. surrounding
D. state

A. Is spontaneous
B. Spontaneity is temperature-dependent
C. Has an increasing free energy
D. Is non-spontaneous

A. Change in the state of the system is increased
B. Temperature of the system may rise
C. Chemical reaction may take place
D. All

A. Internal energy
B. Enthalpy
C. Gibbs free energy
D. Work

A. Furan
B. Thiophene
C. Aniline
D. Pyridine

A. 10%
B. 15%
C. 20%
D. 30%

A. sp2
B. sp
C. sp3
D. none of the above

A. square planar
B. trigonal pyramidal
C. tetrahedral
D. linear

A. metamerism
B. functional group isomerism
C. geometric isomerism
D. position isomerism