1. Two resonance forms for SOCl2 are given below. :cl-s C1 Which is favored by t
ID: 589190 • Letter: 1
Question
1. Two resonance forms for SOCl2 are given below. :cl-s C1 Which is favored by the octet rule and which by formal charge considerations? A) I is favored by the octet rule and by formal charge considerations. B) I is favored by the octet rule and II by formal charge considerations. C) II is favored by the octet rule and I by formal charge considerations. D) II is favored by the octet rule and by formal charge considerations. 2. Which of the following would be expected to have sp2 hybridization on atom A? IV A) II B) I and III C)I, II, and III D) I and IVExplanation / Answer
Q1) Ans is option D
Reason: Octed rule says that number of electrons in valence shell of each atom should be 8. So in this structure, it is justified.
while that of formal charge is -1 on Cl and -2 on O and +4 on S.
Q2) Ans is option C
Reason: In structure I, II and III, the atom A is centrally attached to either 3 atoms o (as in case II and III) or two atoms with one lonepair (case I). This gives it hybridization of sp2.
Q3) Ans is option C
Reason: It is because totoal number of moles of product = 10 while number of moles of reactant are = 9. Thus there is overall increase in number of moles of product which leads to increase in volume.
work done = -PdV
since dV = +ve (product moles - reactant moles)
therefore work done = -P(+V) = -ve. hence work done is negative.
Q4) Ans is option A
Reason: E = q + w i.e 200 - 85 = 115kj
and H = q i.e. 200kj (at constant pressure)
Q5) Ans is option C
Reason: (2 * -1118.4) + (-393.5) - ((3 * - 824.2) + (-110.5))
= -47.2kj
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