The oxides of metals are...........in nature

.................gas is liberated when metals react with acids.

Copper is.................reactive than zinc.

Nitrates of.............find use in photography

All metals are solid but............is liquid at room temperature.

Iron is _______________ reactive than copper.

Explain why zinc metal can displace copper from copper sulphate solution but copper cannot displace zinc from zinc sulphate solution

Aluminium is one of the most widely used metal. It is used for various purposes like in making automobile parts, electrical wires, utensils, toys, household articles, etc. It is also used for welding broken parts of iron machinery. Now, give the answer of the following questions.
(a) Iron and aluminium both react with oxygen. Why aluminium is considered better than iron for a number of purposes?
(b) Give two examples where you have seen the use of aluminium foils.
(c) Why aluminium is used in making cooking utensils?

What happens when
(a) dilute sulphuric acid is poured on a copper plate?
(b) iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved.

Which of the following metals can displace the other two metals from their salt solutions? Zinc, iron, copper

In the figure, iron nail is replaced by a wooden stick, will the bulb glow or not? Justify your answer.

A given non-metal forms sulphuric acid on reacting with nitric acid. Identify the non-metal.

If a metal coin is dropped on hard floor, it produces a ringing sound. What is this property of metals known as?

Ductility is the property of metals. What do you mean by ductility?

Which non-metal is essential for our life and all living beings inhale it during breathing?

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

Metals are malleable and ductile. They possess such properties which make them useful for a number of purposes, e.g. in making coins, jewellery, electrical wires, etc. For different requirements, different metals are used. It depends on the nature of metals. Now give the answer of the following questions.
(a) Give two reasons why gold is used in making jewellery?
(b) If you have to select the metal among copper, aluminium and silver for the transmission of electricity, which one would you prefer and why?
(c) Between silver and copper, which is the better conductor of heat?
(d) Generally, silver foils are used for the decoration of sweets. Are they harmful for us? If yes, then in what manner?

Which metal is present in haemoglobin?

The most reactive metal is

Which of the following is not a metal?