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Calcium carbonate
Sodium bromide
Potassium bromide
None of these
Producer gas is a mixture of
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?
PVC is obtained by the polymerisation of
Quartz is made of
Radioactive isotope of hydrogen is
Radon is formed in the alpha decay of _.
Rate of diffusion of a gas is
Rectified spirit is:
Regarding the atom of a chemical element, magnetic quantum number refers to
Roxarsone, an arsenic containing nitrophenol is used as