The environment in which a system is studied is __________________?
(A) State function
(B) phase
(C) surrounding
(D) state
A reaction has values of ?H and ?S which are both positive. The reaction __________________?
(A) Is spontaneous
(B) Spontaneity is temperature dependent
(C) Has an increasing free energy
(D) Is non-spontaneous
If internal energy of the system is increased ____________________?
(A) Change in state of the system is increased
(B) Temperature of the ystem may rise
(C) Chemical reaction may take place
(D) All
Which one is not state function ________________?
(A) Internal energy
(B) Enthalpy
(C) Gibbs free energy
(D) Work
Which is not heterocyclic compound _______________?
(A) Furan
(B) Thiophene
(C) Aniline
(D) Pyridine
the fractional distillation of petroleum produces gasoline up to ________________?
(A) 10%
(B) 15%
(C) 20%
(D) 30%
In cyano group the carbon atom shows which kind of hybridization___________________?
(A) sp2
(B) sp
(C) sp3
(D) none of the above
In sp3 hybridization the expected geometry of molecules will be__________________?
(A) square planar
(B) trigonal pyramidal
(C) tetrahedral
(D) linear
CuSO4 + Zn?ZnSO4+Cu is___________________?
(A) Spontaneous reaction
(B) Non-spontaneous reaction
(C) Endothermic
(D) Exothermic
State function the macroscopic property of system depends upon________________?
(A) path of reaction
(B) initial state
(C) final state
(D) initial and final state