Category :
O/L
Subject :
Science
Year :
2021
Medium :
English medium
Question Number :
17
Time Passed :
2h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
(1)
urea possesses the properties of the constituent elements.
(2)
a molecule of urea has 2 carbon atoms.
(3)
a molecule of urea has 4 hydrogen atoms.
(4)
the total number of atoms in a urea molecule is seven.
