हिंदी
तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा १०

Two elements sometimes can form more than one compound.

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प्रश्न

Two elements sometimes can form more than one compound.

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
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उत्तर

True

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अध्याय 7: Atoms and Molecules - Evaluation [पृष्ठ १०३]

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सामाचीर कलवी Science [English] Class 10 SSLC TN Board
अध्याय 7 Atoms and Molecules
Evaluation | Q IV. 1. | पृष्ठ १०३

संबंधित प्रश्न

Write down the name of a compound represented by the following formula:

KNO3


Give the name of the element present in the following compound: 

Hydrogen bromide


Give the name of the element present in the following compound: 

Baking powder


Calculate the number of molecules of sulphur (S8) present in 16 g of solid sulphur.


 Define: Atomic number


Define: Atomic weight :


In what form does oxygen gas occur in nature ?


In what form do noble gases occur in nature?


What do the following denote ?

  1. N
  2. 2N
  3. N2
  4. 2N2

The cation of an element has :


Molecular compounds are usually formed by the combination between :


An element X forms the following compounds with hydrogen, carbon and oxygen :

H2X, CX2, XO2, XO3

State the three valencies of element X which are illustrated by these compounds.


Correct the following statement:

A molecule of sulphur is monoatomic.


Why are the symbols and formulae of substances important?


Explain the term – molecules. Give three examples of atoms of the same element forming a molecule. State the atomicity of the same.


Give one example of a triatomic molecule


State the main points of the contradiction of Dalton’s atomic theory by the Modern Atomic Theory.


Give a reason why –

Helium is considered monoatomic, but hydrogen a diatomic molecule.


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

NaCl represents one molecule of sodium chloride.


Which of the following is a triatomic molecule?


The Atomicity of phosphorous is ______


Give any two examples for heterodiatomic molecules.


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