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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Name the Following: the Compound Formed When Iron Fe2+ Combines with Oxygen O2−.

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प्रश्न

Name the following:

The compound formed when iron [Fe2+] combines with oxygen [O2−].

एक पंक्ति में उत्तर
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उत्तर

Iron (III) oxide

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अध्याय 4: Atomic Structure - Objective Type Questions

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विराफ जे दलाल New Simplified Middle School Chemistry [English] Class 7
अध्याय 4 Atomic Structure
Objective Type Questions | Q 5.3

संबंधित प्रश्न

Write the molecular formulae of Magenesium oxide :


Write the molecular formulae of Hydrogen chloride :


Write the molecular formula of sulphuric acid.


Write the molecular formulae of Iron (III) sulphide:


State the term

The symbolic representation of a molecule ______


What is a molecule ? Explain with an example.


If one mole of nitrogen molecules weighs 28 g, calculate the mass of one molecule of nitrogen in grams.


What is the number of electrons donated by a magnesium atom and number of electrons accepted by a sulphur atom during their chemical combination?


What is the number of electrons after the transfer of electrons in magnesium and sulphur atoms.


‘Atoms of the same element or different from Dalton’s atomic theory by the Modern Atomic Theory.
Give two examples each of –

  • Atoms of the same element
  • Atoms of different elements combining to form a molecule.

State the correct formula of the following from the option given:

Sodium bisulphite


State the correct formula of the following from the option given:

Ammonium sulphate


State the correct formula of the following from the option given:

Aluminium phosphate


Express each of the following in kilograms

58.34 g


Express each of the following in kilograms

0.584 g


Express each of the following in kilograms

5.873×10−21g


A group of atoms carrying a fixed charge on them is called ————.


______ can be formed by the same or different kinds of atoms.


A molecule that contains only one atom is called ______ molecule.


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