QUOTE(ally @ Jun 1 2005, 01:49 PM)
The ones I got different answers are for:
9 - D
15 - A
16 - A
9 - D
15 - A
16 - A
yeh i put those aswell!
0
Advanced Higher Chemistry 2005
Started by werlop, May 31 2005 11:30 AM
46 replies to this topic
#41
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Posted 01 June 2005 - 03:48 PM
yeh i put those aswell!
#42
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Posted 01 June 2005 - 03:52 PM
QUOTE(arizona_night @ Jun 1 2005, 12:50 PM)
9 i got D because would there not be a lone pair of electrons on the phosphorous?
Yes, that's what I thought. It's similiar to the shape of ammonia which also has a pyramidal shape.
A molecule like BF3, for instance, has no lone pairs and has a trigonal planar shape.
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#43
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Posted 01 June 2005 - 07:36 PM
omg that was such a stupid mistake of me to make, it was two electrons that are no longer bonded, not two electron pairs!!
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#44
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Posted 01 June 2005 - 09:14 PM
thats what i seem to think the more i look over the paper, all my silly mistakes. at least it was only for 1 mark tho!
#45
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Posted 02 June 2005 - 12:11 PM
ok, i've looked at the mc answers that everyone's put and worked out what the average answers are, hope this helps
1.c
2.a
3.d
4.b
5.a or c
6.c
7.a
8.d
9.a or d
10.b
11.b or d
12.c or d
13.d
14.b
15.a
16.b or d
17.a
18.a
19.b
20.b
21.a
22.c
23.a
24.b
25.c
26.d
27.b
28.a or c
29.a
30.c
31.c
32.d
33.c
34.d
35.a
36.a or c
37.b
38.d
39.b
40.c
x
1.c
2.a
3.d
4.b
5.a or c
6.c
7.a
8.d
9.a or d
10.b
11.b or d
12.c or d
13.d
14.b
15.a
16.b or d
17.a
18.a
19.b
20.b
21.a
22.c
23.a
24.b
25.c
26.d
27.b
28.a or c
29.a
30.c
31.c
32.d
33.c
34.d
35.a
36.a or c
37.b
38.d
39.b
40.c
x
#46
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Posted 02 June 2005 - 06:16 PM
You know for Q 16, does LiCl not dissolve to produce an alkaline solution?
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#47
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Posted 02 June 2005 - 06:52 PM
Hey yep i thot it did.. i put A anyway.
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