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प्रश्न
Identify the odd term.
विकल्प
Brass
bronze
iron
steel
उत्तर
iron
Explanation:
Iron is odd one out because it is not an alloy and others are alloys.
संबंधित प्रश्न
Give an example of a metal which is the best conductor of heat.
Give an example of a metal which can be easily cut with a knife.
State why concentrated sulphuric acid is not used for drying ammonia gas
Name two metals which are used for making electric wires.
Name the non-metal which is used to convert vegetable oil into vegetable ghee (solid fat).
Name the non-metal which is used to preserve food materials.
State one use of Carbon (as Graphite).
State one use of Sulphur.
Name a metal as precious as gold
Name the metals present in the following alloys
Bronze
Write ‘True’ or ‘False’ in front of following statements.
Non-metals are poor conductors of electricity.
State any five physical properties of a non-metal.
Name a non-metal whose compounds help in the growth of plants.
Name a liquid non-metal.
Name:
a metal which can be cut with a knife.
`M+ HCl → MCl_2 +—`
Name:
a metal whose oxide is reduced only by carbon
Explain how the activity series accounts for the following:
occurrence of metals
Identify the odd term.
Write scientific reason.
The stainless steel vessels in Kitchen have copper coating on the bottom.
Write scientific reason.
Sodium metal is kept in kerosene.
With reference to the physical properties of metals and non-metals, state the following exception.
a non-metal which sublimes and is non-lustrous
Differentiate between metals and non-metals with reference to –
(a) number of electrons in outer or valence shell
(b) formation of cation and anion
(c) reaction with dilute acids.
Select the appropriate option for the following statement:
The element which is a noble metal.
State whether the statement given below is true or false. If false write the correct statement.
Lead pencils contain lead.
_______ is good conductor of heat but bad conductor of electricity.
The non-metal which conducts electric current is
The metal is stored in kerosene ______.
Reason out
Mercury is the only metal that is liquid at room temperature.
