0620 Chemistry MCQs Flashcards
1
Q
A
B: Q to R
2
Q
A
B: C2H6
3
Q
A
D: Same number of outer electrons.
4
Q
A
A: Bromine atoms form negatively charged bromide ions.
5
Q
A
C: Ionic - Covalent
6
Q
A
B: 2+ - XY2
7
Q
A
D: It has mobile electrons.
8
Q
A
B
9
Q
A
A: 0.93g
10
Q
A
C: Dilute aqueous sodium chloride.
11
Q
A
D
12
Q
A
B: Endothermic + positive.
13
Q
A
C: 2 and 4
14
Q
A
D: 3 only
15
Q
A
D
16
Q
A
C
17
Q
A
C
18
Q
A
A
19
Q
A
D
20
Q
A
B
21
Q
A
B
22
Q
A
C
23
Q
A
A
24
Q
A
B
25
C
26
A
27
A
28
B
29
B
30
D
31
C
32
A
33
A
34
B
35
C
36
A
37
A
38
B
39
C
40
D
41
D
42
C
43
B
44
A
45
B
46
A
47
A
48
B
49
B
50
A
51
C
52
B
53
D
54
C
55
C
56
A
57
B
58
C
59
D
60
B
61
D
62
A
63
C
64
B
65
D
66
C
67
A
68
A
69
B
70
B
71
D
72
C
73
C
74
D
75
D
76
C
77
A
78
C
79
D
80
B
