1
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
Which of the following structures is the most preferred and hence of lowest energy for SO3?
A
AIPMT 2011 Mains Chemistry - Chemical Bonding and Molecular Structure Question 30 English Option 1
B
AIPMT 2011 Mains Chemistry - Chemical Bonding and Molecular Structure Question 30 English Option 2
C
AIPMT 2011 Mains Chemistry - Chemical Bonding and Molecular Structure Question 30 English Option 3
D
AIPMT 2011 Mains Chemistry - Chemical Bonding and Molecular Structure Question 30 English Option 4
2
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
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following has the minimum bond length ?
A
O2+
B
O2$$-$$
C
O22$$-$$
D
O2
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The correct order of increasing bond length of C $$-$$ H, C $$-$$ O, C $$-$$ C and C$$=$$C is
A
C $$-$$ H < C$$=$$C < C $$-$$ O < C $$-$$ C
B
C $$-$$ C < C$$=$$C < C $$-$$ O < C $$-$$ H
C
C $$-$$ O < C $$-$$ H < C $$-$$ C < C$$=$$C
D
C $$-$$ H < C $$-$$ O < C $$-$$ C < C$$=$$C
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