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प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
Stainless steel is used for making power transmission wires.
पर्याय
True
False
उत्तर
False.
Copper is used for making power transmission wires.
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संबंधित प्रश्न
Write a balanced chemical equation for the reaction of zinc with potassium hydroxide solution.
Give the name and formulae of two acidic oxides.
Name two metals which are used for making domestic utensils and factory equipment.
Name two metals which are both malleable and ductile.
(a) Give the names and formulae of one metal chloride and one non-metal chloride.
(b) State an important property in which these metal chloride and non-metal chloride differ.
(c) Why do they differ in this property?
Fill in the blank:
A metal stored in kerosene oil is _______
State any five physical properties of a non-metal.
Name a non-metal whose compounds help in the growth of plants.
What is an alloy?
What are metalloids: Give examples.
Name a liquid non-metal.
Name:
a metal which lacks ductility
Explain how the activity series accounts for each of the following:
reaction with acids
Which metals do not corrode easily?
Why do gold ornaments look new even after several years of use?
Find the odd one out and give its explanation.
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 |
Write the name.
Nonmetal which is a good conductors of electricity.
