Question Detail The chemical used as a fixer in photography is ? sodium thiosulphatesodium sulphateboraxammonium sulphate Answer: Option A Ad Similar Questions : 1. The substance that contains the maximum amount of nitrogen is ? Ammonium SulphateUreaAmmonium NitrateAmmonium Chloride Answer: Option B 2. The single acid which dissolves gold is ? Aqua regiaHydrochloric acidNitric acidSelenic acid Answer: Option A 3. Why is phosphorus kept under water ? to make it wetto make it durablewater forms a protective coating on itto save it from catching fire when exposed to dry air Answer: Option D 4. What is used to avoid melting of ice ? GelatineButaneMethaneAny acid Answer: Option A 5. Biogas majorly contains ? EthaneMethaneHydrogenCO Answer: Option B Read more from - Chemistry Questions Answers