Metals & Non-Metals

A) Chlorine B) Carbon dioxide C) Nitrogen D) Hydrogen Answer: B Explanation: Heating many carbonates decomposes them to oxide and […]

A) Ability to form only gases B) Ability to resist every chemical reaction C) Ability to be drawn into wire […]

A) Ability to dissolve in water only B) Ability to glow in the dark C) Ability to evaporate instantly D) […]

A) Reduce all metal ions directly with water B) Add more sulfur to every ore C) Convert sulfide toward oxide […]

A) A radioactive isotope only B) An element with properties between metals and nonmetals C) Any liquid element D) A […]

A) Material containing a metal and one or more other elements B) A pure nonmetal gas C) A single isotope […]

A) Oxygen B) Carbon monoxide C) Chlorine D) Neon Answer: B Explanation: Coke and hot air form CO in the […]

A) Brass B) Steel C) Bronze D) Pure aluminium Answer: C Explanation: Traditional bronze combines copper and tin. Alloying changes […]

A) Bronze B) Steel C) Solder made only of tin D) Brass Answer: D Explanation: Brass is mainly Cu and […]

A) Aluminium B) Mercury C) Iron D) Sodium Answer: B Explanation: Mercury has a low melting point for a metal. […]