Question 13 : Compounds formed by the interaction of one halogen with other halogens are called ------------
Question 14 : Which of these halogen oxides is useful in the estimation of CO
Question 15 : Which of these statements is not true of group V elements ?
antimony is a metalloid
Nitrogen exists as a diatomic molecule
Phosphorus exits both in gaseous and solid forms
bismuth is predominantly non- metallic in nature
Question 16 : Which of these is not a component of lead-acid battery?
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