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प्रश्न
Correct the following statement:
CO and Co both represents cobalt.
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उत्तर
CO is a Carbon monoxide and Co is an element named Cobalt.
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संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
State four differences between compounds and mixtures.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
Name: Three different forms of carbon
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Tick (√) the correct alternative from the choice given for the following statement
A metal which is brittle
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Give the name of the radical - SO4
Write the names of elements from the following symbol:
Zn
Write the names of elements from the following symbol:
Ti
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
Select the correct answer from A, B, C, D & E for the statement given below :
A diatomic molecule.
Elements are the______ form of pure substances.
What are elements? What are they made of?
Differentiate between elements and compounds.
Why are utensils made up of aluminium and brass?
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?
Name the constituents of water.
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
