White dwarfs
Quartz clocks
Atomic clocks
Pulsars
Vinegar is _.
Vinegar is a commercial name of
Vinegar is also known as
Virsues that infect bacteria are called
Vitamin C is also known as _.
Vulcanization of rubber is carried out by adding
Vulcanized rubber contains sulphur
Water can be separated from alcohol water mixture by
Water exists both as solid and liquid at-
Water is not effective in extinguishing a fire caused by petrol as
