Question

35. Cl-Cl bond length in Cl, molecule is 198 pm. If C-C bond length is 154 pm in diamond, find the CH3Cl
bond distance in CH3Cl is
(A) 99 pm
(B) 77 pm
(C) 176 pm
(D) 44 pm​

Answer 1

Answer:

C) 176 pm

Step-by-step explanation:

C) 176 pm....is the right answer....

Answer 2

The correct answer is 176 picometers. (Option C).

• The Bond length of Cl Cl - Cl is 198pm, Bond length of C in C - C is 154pm.
• Since the atoms are spherical in size, they are joined by the contact of spheres.
• Radius of Chlorine = Bond length of (Cl - Cl)/2,

=> Radius of Chlroline = 198/2 = 99 picometers.

• Radius of Carbon molecule = (Bondlength of C - C) / 2,

=> Radius of Carbon = 154/2 = 77 picometers.

• The Bond distance of C and Cl in CH3Cl is calculated as follows,

The Carbon sphere molecule touches the sphere of the Chlorine molecule to form a bond, Therefore the Bond distance/ Bond length of C - Cl can be given as, Radius of Chlorine + Radius of Carbon.

=> Radius of C - Cl in CH3Cl = 99 +77 = 176pm.

Therefore, the bond distance of C - Cl in CH3Cl is 176pm (Option C).