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phosphorus pentoxide
red phosphorus
white phosphorus
phosphorus trichloride
The tonnage (1 ton, 2 ton, etc.) of an air conditioner (AC) denotes:
The total energy of an electron inside an atom is
The total energy of revolving electron in an atom
The trace metal present in insulin is
The tree which sends down roots from its branches to the soil is known as:
The type of glass used in making lenses and prisms is
The unit of measurement of noise is
The Unit of plank’s constant is -
The unit of radioactivity is
The unit to measure the flow of water is