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प्रश्न
Write the names of elements from the following symbol:
Cd
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उत्तर
Cd − Cadmium
संबंधित प्रश्न
Name the substance you will add to speed up sedimentation.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Define a pure substance. How many types of pure substances do you know?
Name: Two substances used to make electric wires
State four differences between – elements, compounds and mixtures with suitable examples.
State five different characteristics of compounds.
Select the correct answer from A, B, C, D & E for the statement given below :
A diatomic molecule.
Atoms: Fundamental particle of an element::______ : Fundamental particles of a compound.
Classify the following as metals, non-metals and metalloids.
Sodium, Bismuth, Silver, Nitrogen, Silicon, Carbon, Chlorine, Iron, Copper
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
