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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Write the Molecular Formulae of Iron (Ii) Sulphide : - Chemistry

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प्रश्न

Write the molecular formulae of Iron (II) sulphide :

एका वाक्यात उत्तर
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उत्तर

Iron (II) sulphide - `"FeS"`

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पाठ 4: Atoms, Molecules and Radicals - Exercise

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सेलिना Concise Chemistry [English] Class 7 ICSE
पाठ 4 Atoms, Molecules and Radicals
Exercise | Q 9.06

संबंधित प्रश्‍न

How many atoms are present in a H2S molecule?


Write the molecular formulae of Magenesium oxide :


Write the molecular formulae of Calcium hydroxide :


Write the molecular formulae of Hydrogen chloride :


Write the molecular formulae of Iron (III) sulphide:


Write the molecular formulae of Calcium phosphate :


The valency of sodium is one, write the molecular formula for sodium oxide ?


The valency of sodium is one, write the molecular formula for sodium carbonate ?


Write the cations and anions present, if any, in the following : 

  1. CH3COONa 
  2. NaCl
  3. H2
  4. NH4NO3

Calculate the number of molecules present in a drop of chloroform (CHCl3) weighing 0.0239 g.

(Atomic masses : C = 12 u ; H = 1 u ; Cl = 35.5 u)


If 1 gram of sulphur dioxide contains x molecules, how many molecules will be present in 1 gram of oxygen ?

(S = 32 u ; O = 16 u)


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:

Copper [II] nitrate


Name the following:

A molecule of a compound containing two oxygen atoms and one nitrogen atom.


State true of false. If false, give the correct statement.

Atoms cannot exist alone. They can only exist as groups called molecules.


Express each of the following in kilograms

58.34 g


Express each of the following in kilograms

5.873×10−21g


Compute the number of ions present in 5.85 g of sodium chloride


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


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