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Question
Select the correct answer from A, B, C, D & E for the statement given below :
A diatomic molecule.
Options
Gunpowder
Iodine
Boron
Helium
Bromine
Solution
A diatomic molecule: Bromine
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RELATED QUESTIONS
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
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f .handpicking |
Define the term: Element
Define Elements.
Give one use of the following substance:
Coal
Give reason: Graphite is used to make a lead of the pencils.
Tick (√) the correct alternative from the choice given for the following statement
A non-metal which is a good conductor of electricity.
Explain the term ‘mixture’.
Give an example of two liquids that form heterogeneous – mixtures.
Differentiate metals and non-metals.
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
