Question Detail Which metal is heaviest ? osmiummercuryironnickle Answer: Option A Ad Similar Questions : 1. Washing soda is ? sodium sulphitesodium bicarbonatesodiun carbonatesodium biosulphite Answer: Option C 2. All noble gases are ? colourlesscolourlesscolourless and odourlesscolourless and but have odour Answer: Option C 3. Natural rubber is a polymer derived from ? ethylenepropyleneisoprenebutadiene Answer: Option C 4. Bleaching action of chlorine is by decompositionhydrolysisreductionoxidation Answer: Option A 5. Alloys made with mercury as one metal are called ? mixturesemulsionssoldersamalgams Answer: Option D Read more from - Chemistry Questions Answers