Question Detail The most abundant element in the earth's crust is ? AluminiumNitrogenSiliconOxygen Answer: Option D Similar Questions : 1. What is used to avoid melting of ice ? GelatineButaneMethaneAny acid Answer: Option A 2. The substance that contains the maximum amount of nitrogen is ? Ammonium SulphateUreaAmmonium NitrateAmmonium Chloride Answer: Option B 3. Which of the primary component of natural gas? EthanePropaneMethaneButane Answer: Option C 4. Aspirin is acetyl salicylic acidsodium salicylatemethyl salicylateethyl salicylate Answer: Option A 5. Which gas is used in fire extinguishers ? Carbon dioxideNitrogen oxideCarbon monoxideSulpher dioxide Answer: Option A Read more from - Chemistry Questions Answers