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प्रश्न
Diamond is a hard substance.
विकल्प
Right
Wrong
उत्तर
Diamond is a hard substance- Right
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संबंधित प्रश्न
Give reasons for the following.
Aluminium foils are used to wrap food items.
Which property of copper and aluminium makes them suitable for making cooking utensils and boilers?
Name a non-metal having a very high melting point.
State one use of Hydrogen.
Name a non-metal which conducts electricity.
Name a metal used as a thermometric liquid
Name a metal that is the best conductor of electricity
The noble gas used in advertising signboards is
Name the non-metal and its natural form, which is the hardest substance.
Name the non-metal present in abundance in the earth's crust.
How many valence electrons are present in:
(i) metals and
Explain the term Minerals.
Identify the odd term.
Write scientific reason.
The stainless steel vessels in Kitchen have copper coating on the bottom.
With reference to the physical properties of metals and non-metals, state the following exception.
A metal which floats on water.
Complete the statement given below, by filling in the blank with the correct word:
A non-metal which allows an electric current to pass through it ______.
State whether the statement given below is true or false. If false write the correct statement.
The chemical name of rust is iron [III] oxide.
Write the name.
Nonmetal which is a good conductors of electricity.
Which of the following non-metal is lustrous?
The composition of aqua-regia is
