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Rossel A) 1 n) 2 2 A) NIt B) HI Br2 3) Which of the following 3) molecules does.not exhibit a net dipole moment of ero don.ot D) CH4 E) CCl4 4) What are the formal charges on nitrogen and the starred oxygen atom in the following moleculet 4 CH3-N B)N--1, 0-1 5) 5) Identify the hybridization of the oxygen in CH3OCH3 B) sp5 C) sp3 D) sp4 E) sp2 A) sp 6) 6) Give the H-C-H bond angle in H2CO. A) 60 B) 109.5 C) 90 D) 120 E) 180 7) 7) How many unpaired electrons are present in the isolated carbon atom (atomic number-6)7 A) none B) one C) two D) three E) four

Answer 1

1)

There is a sigma bond in triple bond

There is another sigma bond between other carbon

Answer: B)2

2)

Br2 is non polar

So, the dipole moment here is 0 which is smallest

Answer: E)Br2

3)

H2O doesn’t has a 0 dipole moment due to presence of lone pair and bent structure

Answer: A) H2O

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