Two of the following molecules have permanent electric dipole moment, i e.mu not

Question

Two of the following molecules have permanent electric dipole moment, i e.mu notequalto 0. They are _____ and ____ (a) Benzene (C6_H_6) (b) 1-Brobo benzene (C_6H_2Br) (c) 1. 2-Dibromo-benzene (C_4H_4Br_2) (d) 1, 4- Dibromo-benzene (C_4H_4Br_2) Two the following molecules are non polar. They are ____ and ____ (a) NH_3 (b) CCl_4 (c) CH_3COOH (d)CO_2 An electric dipole moment (mu) is the resultant of two components, i.e. mu _1 = 1.2 D and mu_2 = 0.6 D; and mu_1 and mu_2 are related by an angle of 45 degree. This resultant dipole moment mu = ____ D (a) 1.68 (b) 4.15 (c) 2.04 (d) 3.21

Explanation / Answer

1)

Benzene is symmetrical and hence non polar

In 1,4-dibromo-benzene , Both bromine are attached on opposite side of benzene ring. Hence this is also non polar

Rest 2 are polar

Answer: b and c

2)

NH3 is polar as N has lone pair on it

CCl4 is non polar due to symmetry

CH3COOH is polar

CO2 is polar because it is linear and symmetric (O=C=O)

Answer: b and d

I am allowed to answer only 1 question at a time

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.