1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
The pairs of species of oxygen and their magnetic behaviours are noted below. Which of the following presents the correct description?
A
$$O_2^ - ,O_2^{2 - }$$ - Both diamagnetic
B
$$O_2^ + ,{O_2}$$ - Both paramagnetic
C
O, $$O_{2}^{2-}$$ - Both paramagnetic
D
$${O^ + },O_2^{2 - }$$ - Both paramagnetic
2
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Which has the maximum number of molecules among the following ?
A
44 g CO2
B
48 g O3
C
8 g H2
D
64 g SO2
3
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
According to the Bohr theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon ?
A
n = 6 to n = 1
B
n = 5 to n = 4
C
n = 6 to n = 5
D
n = 5 to n = 3
4
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Which of the following is not a fat soluble vitamin?
A
Vitamin B complex
B
Vitamin D
C
Vitamin E
D
Vitamin A
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