1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The following mechanism has been proposed for the reaction of NO with Br2 to form NOBr:
NO(g) + Br2 (g) $$\leftrightharpoons$$ NOBr2 (g)
NOBr2 (g) + NO (g) $$\to$$ 2NOBr (g)
If the second step is the rate determining step, the order of the reaction with respect to NO(g) is
A
1
B
0
C
3
D
2
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The increasing order of the first ionization enthalpies of the elements B, P, S and F (lowest first) is :
A
F < S < P < B
B
P < S < B < F
C
B < P < S < F
D
B < S < P < F
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is true?
A
H3PO3 is a stronger acid than H2SO3
B
In aqueous medium HF is a stronger acid than HCl
C
HClO4 is a weaker acid than HClO3
D
HNO3 is a stronger acid than HNO2
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The “spin-only” magnetic moment [in units of Bohr magneton, (µB)] of Ni2+ in aqueous solution would be : (Atomic number of Ni = 28)
A
2.84
B
4.90
C
0
D
1.73
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