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. The best technique to determine the electrolytes in human plasma is
A) GC B) DTA C) AAS D) MS

. How much heat is required to vaporize one mole of a substance that has a measured
vapor pressure of 0.032 atm at 0°C and 0.178 atm at 52°C ?
A) 24.37 kJ/mol B) 26.54 kJ/mol
C) 24.32 kJ/mol D) 26.45 kJ/mol

. XRF technique can be used for
A) Elemental identification
B) Elemental composition determination
C) Elemental separation
)

D) Isotope determination

. Micelle formation occurs when the substance is
A) Amphoteric B) Hydrophilic C) Amphipathic D) Hydrophobic

. Among the following, green solvents include
i. Deep eutectic solvent
ii. Ethyl lactate
iii. lonic liquid
iv. ‏و00‎
‎v. Supercritical CO,
vi. FC-72
۷ THF
A) All except ii and vii B) iii and v only
C) i, ii, iii, v, vi only D) i, iii, v, vi only
. Which of the following is not connected to zeta potential ?
A) Electrophoresis B) Dynamic light scattering
C) Energy dispersive X-ray D) Interfacial double layer

. Average translational energy of colloidal particles is of the order
A) (3/2)kT per mole B) (1/2) kT per mole
C) (1/2) kT per particle 0) (3/2)kT per particle

. Lattice spacings of inorganic materials can be analyzed using
A) AFM B) HR-TEM C) SEM D) DLS