Tag: uses of metals and non metals
Questions Related to uses of metals and non metals
Platinum metal can be dissolved in:
The most reactive metal among the following is:
Arrange $Si, Be, Mg, Na$ and $P$ in the increasing order of metallic character:
In vapour state a metal is mono atomic.
Metals have:
Sodium and potassium are soft even after being metals because of:
A metal which is lighter than water is:
Metals generally extracted by electrolysis of their fused salts are highly:
You may be "shocked" to discover that metals are good conductors of electricity. Which of the following statements best explains why metals behave in this way?
You have three solids. One is a metal; one is an ionic compound; one is a molecular/covalent compound. You test all three solid samples to identify their bonding.
Sample | Appearance | Melting Point $(^{\circ}C)$ | Conductivity |
---|---|---|---|
A | Shiny | $962$ | conductive |
B | Crystalline | $801$ | conductive in aqueous solution |
C | Powdery | $186$ | not conductive |
Based on this data, identify the type bonds present in each sample.