Skip to content Home Questions Play Progress Daily Challenge Questions › Chemistry › Metals, Non-metals and Alloys Questions QUESTION Which element takes its name from Cyprus, the island shown in the Royal Society of Chemistry’s illustration for that element? Open question → QUESTION Which of the following gases plays an important role in welding titanium, aluminium, stainless steel, and magnesium? Open question → QUESTION Consider the reaction of heated iron with steam. 1. A gas is evolved during this reaction. 2. The evolved gas is methane. Which statements… Open question → QUESTION Which salt forms when zinc reacts with dilute sulfuric acid? Open question → QUESTION Which of the following is used as a substitute of mercury in thermometers? Open question → QUESTION Consider the following statements about LED semiconductors. 1. Gallium is a constituent of compound semiconductors such as GaAs and GaN used in LEDs. 2.… Open question → QUESTION Which option names the traditional tin–lead alloy used as leaded solder? Open question → QUESTION Which metal is a constituent of the mineral kieserite (MgSO₄·H₂O)? Open question → QUESTION Assertion (A): Silicon dioxide has a high melting point due to strong covalent bonds throughout its structure. Reason (R): Silicon dioxide is made up… Open question → QUESTION Ozone is an allotrope of ______. Open question → QUESTION At 25°C and approximately one atmosphere, consider the following statements. 1. Mercury has a boiling point of approximately 357°C. 2. Gallium is liquid. 3.… Open question → QUESTION Assertion (A): Potassium reacts violently with cold water, producing hydrogen gas and heat. Reason (R): Potassium is an alkali metal with low reactivity. Open question → QUESTION Which of the following statements about metals and non-metals is incorrect? Open question → QUESTION Which of the following statements is NOT correct regarding the alkali metals? Open question → QUESTION Assertion (A): Aqua regia can dissolve noble metals like gold and platinum. Reason (R): Chloroform is a strong acid that reacts with metals to… Open question → QUESTION Which of the following statements is/are NOT correct? I. The property of metals by which they can be beaten into thin sheets is called… Open question → QUESTION Assertion (A): Emissions of sulfur dioxide and nitrogen oxides can contribute to acid rain. Reason (R): These gases react with atmospheric water, oxygen and… Open question → QUESTION Assertion (A): Mercury is always present in an amalgam. Reason (R): Amalgams are alloys of mercury with one or more other metals. Open question → QUESTION Which of the following is a non - metal that can exist in different form? Open question → QUESTION Consider the following statements: 1. Electrum is a naturally occurring alloy of gold and silver. 2. Constantan is an alloy of copper and nickel.… Open question → QUESTION Which group 17 element has stable isotopes with mass numbers 35 and 37 and representative abundances of approximately 75.77% and 24.23% respectively? Open question → QUESTION From which Latin word is the S block element calcium derived? Open question → Home Questions Play Progress 