Carbon and Its Compounds: Class 10 Science Notes
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Questions and Answers

How does carbon achieve stability in its outermost shell?

  • By losing four electrons to form a carbon cation
  • By forming ionic bonds with other elements
  • By gaining four electrons to form a carbon anion
  • By sharing its outer electrons with other atoms (correct)

What type of bond is formed in the hydrogen molecule (H2)?

  • Hydrogen bond
  • Ionic bond
  • Metallic bond
  • Covalent bond (correct)

How does the chlorine gas (Cl2) molecule achieve stability?

  • By losing electrons to form a cation
  • By gaining electrons to form an anion
  • By sharing electrons to form a covalent bond (correct)
  • By forming metallic bonds with other elements

What type of bond is formed in the oxygen molecule (O2)?

<p>Covalent bond (D)</p> Signup and view all the answers

What is the name of the bond formed when two hydrogen atoms share their electrons to form a hydrogen molecule (H2)?

<p>Covalent bond (D)</p> Signup and view all the answers

What is the process called when carbon shares its outer electrons with other atoms?

<p>Covalent bonding (B)</p> Signup and view all the answers

How many electrons are shared between two chlorine atoms to form a chlorine gas (Cl2) molecule?

<p>Two electrons (A)</p> Signup and view all the answers

What is the term for the sharing of outer electrons between carbon and other atoms to achieve stability?

<p>Covalent bonding (B)</p> Signup and view all the answers

What is the chemical equation for the formation of a hydrogen molecule (H2) from two hydrogen atoms?

<p>H + H → H2 (C)</p> Signup and view all the answers

How does carbon achieve stability in its outermost shell?

<p>By sharing its outer electrons with other atoms (D)</p> Signup and view all the answers

Flashcards

Covalent bond

A chemical bond formed between two atoms when they share electrons in their outermost shell.

Covalent bonding

The process where atoms share their outermost electrons to achieve stability by filling their outermost shell.

Stability in the outermost shell

The ability of an atom to gain stability by filling its outermost shell with electrons.

Carbon's stability through sharing

Carbon achieves stability in its outermost shell by sharing its outer electrons with other atoms, forming covalent bonds.

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Hydrogen molecule formation

Hydrogen gas (H2) is formed when two hydrogen atoms share their one electron each, forming a single covalent bond.

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Oxygen molecule formation

Oxygen gas (O2) is formed when two oxygen atoms share two electrons each, forming a double covalent bond.

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Chlorine molecule formation

Chlorine gas (Cl2) is formed when two chlorine atoms share one electron each, forming a single covalent bond.

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Electron sharing in Cl2

Two electrons are shared between two chlorine atoms to form a chlorine gas (Cl2) molecule, resulting in a single covalent bond.

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Chemical equation for H2 formation

The chemical equation for the formation of a hydrogen molecule (H2) from two hydrogen atoms is: H + H → H2.

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Chemical equation for H2 formation

The chemical equation for the formation of a hydrogen molecule (H2) from two hydrogen atoms is: H + H → H2.

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