Advertisements
Advertisements
Question
Name a non-metal which can form a positive ion.
Solution
Hydrogen
APPEARS IN
RELATED QUESTIONS
Choose the most appropriate answer of the following:
This is not an alloy of copper:
(A) Brass
(B) Bronze
(C) Solder
(D) Duralumin.
What is meant by "brittleness"? Which type of elements usually show brittleness: metals or non-metals?
Which of the following are amphoteric oxides:
MgO, ZnO, P2O3, Al2O3, NO2
You are given a dry cell, a torch bulb with holder, wires and crocodile clips. How would you use them to distinguish between samples of metals and non-metals?
Name a non-metal which conducts electricity.
State two important uses of following non-metals
Uses of nitrogen
Name:
the most abundant metal and the most abundant non=metal
Give the balanced reactions for the following:
Iron reacts with dilute HCI
Make pairs of substances and their properties
| Substance | Property |
| a. Potassium bromide (KBr) | 1. Combustible |
| b. Gold | 2. Soluble in water |
| c. Sulphur | 3. No chemical reaction |
| d. Neon | 4. High ductility. |
Explain the following:
Metals like calcium and magnesium are never found in their free state in nature.
