1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Considering the state of hybridization of carbon atoms, find out the molecule among the following which is linear ?
A
CH3 $$-$$ CH $$=$$ CH $$-$$ CH3
B
CH3 $$-$$ C$$ \equiv $$C $$-$$ CH3
C
CH2 $$=$$ CH $$-$$ CH2 $$-$$ C$$ \equiv $$CH
D
CH3 $$-$$ CH2 $$-$$ CH2 $$-$$ CH3
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between their wavelengths i.e., $$\lambda $$1 and $$\lambda $$2 will be
A
$$\lambda $$1 = $$\lambda $$2
B
$$\lambda $$1 = 2$$\lambda $$2
C
$$\lambda $$1 = 4$$\lambda $$2
D
$$\lambda $$1 = $${1 \over 2}$$ $$\lambda $$2
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 pairs of species of oxygen and their magnetic behavior are noted below. Which of the following presents the correct description?
A
O$$_2^ - $$, O$$_2^{2 - }$$ - Both diamagnetic
B
O+, O$$_2^{2 - }$$ - Both paramagnetic
C
O$$_2^{ + }$$, O2 - Both paramagnetic
D
O, O$$_2^{2 - }$$ - Both paramagnetic