1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Fluorobenzene (C6H5F) can be synthesized in the laboratory
A
by heating phenol with HF and KF
B
from aniline by diazotisation followed by heating the diazonium salt with HBF4
C
by direct fluorination of benzene with F2 gas
D
by reacting bromobenzene with NaF solution
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Density of a 2.05M solution of acetic acid in water is 1.02 g/mL The molality of the solution is
A
2.28 mol kg-1
B
0.44 mol kg-1
C
1.14 mol kg-1
D
3.28 mol kg-1
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
How many moles of magnesium phosphate Mg3(PO4)2 will contain 0.25 mole of oxygen atoms?
A
1.25 $$\times$$ 10-2
B
2.5 $$\times$$ 10-2
C
0.02
D
3.125 $$\times$$ 10-2
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
According to Bohr's theory, the angular momentum of an electron in 5th orbit is
A
10 $$h/\pi$$
B
2.5 $$h/\pi$$
C
25 $$h/\pi$$
D
1.0 $$h/\pi$$

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