Free neutron changes into proton with the emission of__________________?

When the radiation of light is passed through a prism, it undergoes __________?

A. reflection
B. interference
C. diffraction
D. refraction

A theoretical link between quantum mechanics and thermodynamics is_________?

A. Electrchemistry
B. Matrix mechanics
C. Statistical thermodynamics
D. Soectroscopic analysis

The formula C6H5-CO-CH3 represents_______ ?

A. Acetone
B. Acetic acid
C. Acetophenone
D. Phenyl acetate

When Ammonia is used as a refrigerant in vapour compression cycle?A. Cu Tubing used
B. Steel tubes used
C. Both a & b
D. Material does not effect by refrigerant