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Covalent Bond

Among B 2 H 6...

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Among $B_{2} H_{6}, B_{3} N_{3} H_{6}, N_{2} O, N_{2} O_{4}, H_{2} S_{2} O_{3} a n d H_{2} S_{2} O_{8},$ the total number of molecules containing covalent bond between two atoms of the same kind is:

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Q. Fill in the blanks in the following sentences:
(i) Two atoms of the same element combine to form a molecule. The bond between them is known as ................ bond.
(ii) Two chlorine atoms combine to form a molecule. The bond between them is known as ..........
(iii) In forming oxygen molecule, .............. electrons are shared by each atom of oxygen.
(iv) In forming N₂ molecule, .............. electrons are shared by each atom of nitrogen.
(v) The number of single covalent bonds in C₂H₂ molecule are ...........
(vi) Melting points and boiling points of ionic compounds are generally ............ than those of covalent compounds.

B_{2} H_{6}, B_{3} N_{3} H_{6}, N_{2} O, N_{2} O_{4}, H_{2} S_{2} O_{3} a n d H_{2} S_{2} O_{8},

the total number of molecules containing covalent bond between two atoms of the same kind is:

Q. How many of the following compounds has XX bonds i.e. single covalent bond between two same elements in their molecules :

H_{2} S_{2} O_{4}, H_{2} S_{2} O_{7}, H_{2} S_{2} O_{8}, N_{2} O, N_{2} O_{3}, N_{2} O_{4}, N_{2} O_{5}, {(H P O_{3})}_{3}

Q. Which among the following contains same number of molecules as in

22 g r a m s

N_{2} O

?

Q. How many covalent bonds are formed between the two bromine atoms of the

B r_{2}

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