Science : Ch 03 – Metals and Non-metals

Which of the subsequent quality is generally not shown by metals?

An aluminium strip is retained immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change state is that:

Which of the following is not a property of ionic compounds ?

Which one of the following properties is not commonly exhibited by ionic compounds?

Metals are solid in nature. Which one of the Subsequent metals is found in liquid condition at room temperature?

Shwetha took three beakers A, B and C containing zinc sulphate, silver sulphate and iron (II) sulphate solutions respectively. Copper pieces were added to each beaker. The solution will Become visible blue in the case of:

In the given reaction, Al₂O₃ + NaOH → …X… + H₂O. What is element X?

Which metal can be displaced by copper from its salt solution?

When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding potassium metal to water catches fire.

A Metal that exists in liquid state at room temperature

Metal that is best conductor of electricity

Give the formula of the stable binary compound that would be formed by the combination of following pair of elements: Mg and N₂

Give the formula of the stable binary compounds that would be formed by the combination of following pair of elements: Li and O₂

Name one non-metal that exist in liquid state at room temperature.

A non-metal X exists in two diferent forms Y and Z. Y is the hardest natural substance, whereas Z is a good conductor of electricity. Identify X, Y and Z.