1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
In a compound C, H and N atoms are present in 9 : 1 : 3.5 by weight . Molecular weight of the compound is 108 g mol-1 . Molecular formula of compound is
A
C2H6N2
B
C3H4N
C
C6H8N2
D
C9H12N3
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Number of atoms in 558.5 gram Fe (at. wt. of Fe = 55.85 g mol-1) is
A
twice that in 60 g carbon
B
6.023 $$\times$$ 1022
C
half that in 8 g He
D
558.5 $$\times$$ 6.023 $$\times$$ 1023
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