हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Diagrammatically Represent the Transfer of Electrons.

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प्रश्न

Diagrammatically represent the transfer of electrons.

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अध्याय 4: Atomic Structure - Additional questions

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एस पी सिंग Concise Chemistry [English] Class 7 ICSE
अध्याय 4 Atomic Structure
Additional questions | Q 7.4

संबंधित प्रश्न

How many atoms are present in a H2S molecule?


Write the molecular formulae of Magenesium oxide :


Write the molecular formula of sulphuric acid.


Write the molecular formulae of Iron (III) sulphide:


Write the molecular formulae of Nitric acide :


Write the molecular formulae of Calcium phosphate :


State the term

The combining capacity of an element _______


What is a molecule ? Explain with an example.


In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is :


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)


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


‘Dilute hydrochloric acid is added to sodium hydroxide’. Give a word equation and a molecular equation of the same. Is the equation written, a balanced equation. Give reasons.


Fill in the blank:

A molecule of an element is _________.


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

Aluminium phosphate


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

Copper [II] nitrate


Name the following:

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


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

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


How many atoms are present in a `PO_4^(3-)` ion?


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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