Brij Bihari Agrawal Solutions for Chapter: Metals and Non - Metals, Exercise 1: Paper-Pen Test

Malachite is the ore of which metal?

Read the following carefully and select the correct statements about the physical and chemical properties of metals :

I. All metals are ductile. 

II. Generally metals are ductile. 

III. Metals which are more reactive than hydrogen react with acids to release hydrogen gas.

IV. All metals react with acids to release hydrogen gas. 

Aluminium foil is used for wrapping food because:

Point out correct statement. Iron is: 

Which of the following alloys does not contain any copper?

Iron was dipped in a solution kept in a test tube. After half an hour, it was observed that the colour of the solution had changed. The solution in the test tube is of: 

The correct decreasing order of the reactivity of the metals: $\mathrm{Fe}, \mathrm{Co}, \mathrm{Pb}, \mathrm{Cu}$ is:

Which of the following is the least abundant metal in earth's crust?