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प्रश्न
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
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उत्तर
Element: Mercury, sulphur, gold, carbon, oxygen, iron.
Compound: Sugar, water, sand, alcohol, marble, baking soda.
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संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Mention three gaseous elements and write their molecular formulae
Find the atomicity of the Following molecule:
Acetic Acid
Select the correct answer from the choice given below.
An impure substance
Select the correct answer from the choice given below to complete the sentence :
An example of a monoatomic molecule is ___________.
What are elements? What are they made of?
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
Water contains _____ and _____ element.
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal other than carbon that shows allotropy.
