1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The IUPAC name of the compound
CH3CH$$=$$CHC$$ \equiv $$CH is
A
pent-4-yn-2-ene
B
pent-3-en-1-yne
C
pent-2-en-4-yne
D
pent-1-yn-3-ene
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
Which of the following species is not electrophilic in nature?
A
$$\mathop C\limits^ + l$$
B
BH3
C
H3$$\mathop O\limits^ + $$
D
$$\mathop N\limits^ + $$O2
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The reaction,
2A(g) + B(g) $$\rightleftharpoons$$ 3C(g) + D(g)
is begun with the concentrations of A and B both at an initial value of 1.00 M. When equilibrium is reached, the concentration of D is measuread and found to be 0.25 M. The value for the equilibrium constant for this reaction is given by the expression
A
[(0.75)3 (0.25)] $$ \div $$ [(1.00)2 (1.00)]
B
[(0.75)3 (0.25)] $$ \div $$ [(0.50)2 (0.75)]
C
[(0.75)3 (0.25)] $$ \div $$ [(0.50)2 (0.25)]
D
[(0.75)3 (0.25)] $$ \div $$ [(0.75)2 (0.25)]
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The following two reactions are known

Fe2O3(s) + 3CO(g) $$ \to $$ 2Fe(s) + 3CO2(g); $$\Delta $$H = $$-$$ 26.8 kJ

FeO(s) + CO(g) $$ \to $$  Fe(s) + CO2(g); $$\Delta $$H = $$-$$ 16.5 kJ

The value of $$\Delta $$H for the following reaction

Fe2O3(s) + CO(g) $$ \to $$  2FeO(s) + CO2(g) is
A
+ 10.3 kJ
B
$$-$$ 43.3 kJ
C
$$-$$ 10.3 kJ
D
+ 6.2 kJ
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