English Medium Class 10 - CBSE Question Bank Solutions for Science

What type of bonds are present in Cl₂ molecule? Draw their electron-dot structures.

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The form of carbon which is known as black lead is ...........

What type of bonds are present in CO₂ molecule? Draw their electron-dot structures.

Which inert gas electron configuration do the Cl atoms in Cl₂ molecule resemble? What is this electron configuration?

Give one example of a molecule containing a single covalent bond.

Give one example of a molecule containing a double covalent bond

Give one example of a molecule containing a triple covalent bond.

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Two atoms of the same element combine to form a molecule. The bond between them is known as ................ bond.

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Two chlorine atoms combine to form a molecule. The bond between them is known as ..........

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In forming oxygen molecule, .............. electrons are shared by each atom of oxygen.

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In forming N₂ molecule, .............. electrons are shared by each atom of nitrogen.

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The number of single covalent bonds in C₂H₂ molecule are ...........

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The general formula C_nH_2n for cycloalkanes is the same as that of ...........

What is the atomic number of carbon. Write its electronic configuration.

What is a covalent bond? 

What type of bond exist in CCl₄?

What type of chemical bonds are formed by carbon? Why?

What type of bond is present in oxygen molecule?

What type of chemical bond is present in chlorine molecule? Explain your answer.