Advertisements
Advertisements
Question
Tick (√) the most appropriate answer.
Copper metal is used in :
Options
making electric wires
filling tooth cavities
making fuse wires
preparation of hydrogen
Solution
making electric wires
APPEARS IN
RELATED QUESTIONS
Can you store lemon pickle in an aluminium utensil? Explain.
Choose the correct answer from the options given below:
Anhydrous iron(III) chloride is prepared by:
1) direct combination
2) simple displacement
3) decomposition
4) neutralization
Name the non-metal which is used to preserve food materials.
Which of the following are amphoteric oxides:
MgO, ZnO, P2O3, Al2O3, NO2
State one use of Nitrogen.
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?
State any five physical properties of non-metals.
How do non-metals react with oxygen? Explain with an example. Give equation of the reaction involved. What is the nature of the product formed? How will you demonstrate it?
Name a metal used in making electric cables
State two important uses of following non-metal
Uses of graphite
Name:
a non-metal which is ductile
Which metals do not corrode easily?
Identify the odd term.
Identify the odd term.
With reference to the physical properties of metals and non-metals, state the following exception.
A non-metal which has low tensile strength
_______ is good conductor of heat but bad conductor of electricity.
Match the columns.
| Group A | Group B |
| 1. Making sheets of metals | a) Sonority |
| 2. Making metal utensils | b) Malleability |
| 3. Making Copper wires | c) Good conductor of heat |
| 4. Making bells from metal | d) Ductility |
Name six common non-metals and write their symbols.
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
The composition of aqua-regia is
