12) What is the hybridization of the I atom in a IFs molecule? C) sp3d A) sp2 B)

Question

12) What is the hybridization of the I atom in a IFs molecule? C) sp3d A) sp2 B) sp2d2 E) sp3 13) An endothermic reaction is a process that A) has a negative Hsys and a positive ASsurr C) has a negative AHsys and a negative ASsurrD) has a positive AHsys and a positive ASsurr B) has a positive sys and a negative Ssurr. 14) Which of the following processes has a AS>07 B) CH4 (g) + H2O(s) CO(g) + 3 H2(g) C) K2CO3 (s) + H2O(g) + CO2(g) 2 KHCO3(s) D) N2(g) + 3 H2(g) 2 NH3(g) E)All of the above processes have a AS>0

Explanation / Answer

12)

I has 7 electrons in its valence shell

5 are used up in forming 5 bonds with I

2 electrons are present as lone pair on I

So, There are total of 6 electron domain around I

This makes I sp3d2 hybridised

Answer: D

13)

endothermic reaction requires heat

So, Q is positive

So, delta Hsys is positive

surrounding is giving this heat

So, delta S surr = -q/T is negative

Answer: B

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