Science Practice Quiz 25

Q1.On what basis are elements classified as metals or non-metals?

A. their properties B. their atomic number C. their reactivity D. their density

Q2.What is the property called when metals, in their pure state, have a shining surface?

A. metallic lustre B. malleability C. ductility D. sonority

Q3.According to Activity 3.1, what is the recommended method to observe the true appearance of metal samples like iron, copper, aluminium, and magnesium?

A. Rubbing them with sandpaper B. Heating them to high temperatures C. Dissolving them in acid D. Observing them under a microscope

Q4.What specific caution is mentioned in the text regarding handling sodium metal?

A. Always handle it with care and dry it by pressing between the folds of a filter paper B. Always store it in water to prevent reaction C. Always wear gloves and a face shield D. Always keep it away from all other metals

Q5.What is considered the easiest way to start grouping substances?

A. By comparing their physical properties B. By analyzing their chemical reactions C. By determining their atomic structure D. By measuring their electrical conductivity

Q6.Which property of metals allows them to be beaten into thin sheets?

A. Ductility B. Sonority C. Malleability D. Lustre

Q7.According to the provided text, which of the following metals are considered the most malleable?

A. Iron and copper B. Lead and zinc C. Gold and silver D. Aluminium and mercury

Q8.What is the term for the ability of metals to be drawn into thin wires?

A. Malleability B. Hardness C. Ductility D. Conductivity

Q9.Which metal is identified as the most ductile in the given passage?

A. Silver B. Copper C. Gold D. Aluminium

Q10.Approximately what length of wire can be drawn from one gram of gold?

A. About 1 km B. About 2 km C. About 500 meters D. About 10 km

Sign in with Email

Science Practice Quiz 25