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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
All pure substances have
पर्याय
the same physical state
the same colour
the same composition
a definite set of properties
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उत्तर
a definite set of properties
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संबंधित प्रश्न
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture
Name: a Non-metal Which is a Good Conductor of Electricity.
Give one use of the following substance:
Iron
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
Select the correct answer from A, B, C, D & E for the statement given below :
A diatomic molecule.
Select the correct answer from the choice given below to complete the sentence :
Dust in air is an example of _________ mixture.
Classify the following as metals, non-metals and metalloids.
Sodium, Bismuth, Silver, Nitrogen, Silicon, Carbon, Chlorine, Iron, Copper
Higher Order Thinking Skills.
In the diagram given below, the circle, square and triangle represent the atoms of different elements.
Identify all combinations that represent
- molecule of a compound
- molecule of an element consisting of two atoms
- molecule of an element consisting of three atoms
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
Higher-Order Thinking questions:
Why is hydrogen considered an element?
