1
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
The entropy change in the fusion of one mole of a solid melting at 27oC (latent heat of fusion is 2930 J mol–1) is :
A
9.77 J/mol-K
B
10.77 J/mol-K
C
9.07 J/mol-K
D
0.977 J/mol-K
2
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
For the reaction,
C2H5OH(l) + 3O2(g) $$ \to $$ 2CO2(g) + 3H2O(l)
which one is true
A
$$\Delta $$H = $$\Delta $$E $$-$$RT
B
$$\Delta $$H = $$\Delta $$E + RT
C
$$\Delta $$H = $$\Delta $$E + 2RT
D
$$\Delta $$H = $$\Delta $$E $$-$$ 2RT
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Conjugate acid of NH2$$-$$ is
A
NH4OH
B
NH4+
C
NH2$$-$$
D
NH3
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Which statement is wrong about pH and H+?
A
pH of neutral water is not zero.
B
Adding 1 N solution of CH3COOH and 1 N solution of NaOH, pH will be seven.
C
[H+] of dilute and hot H2SO4 is more than concentrated and cold H2SO4
D
Mixing solution of CH3COOH and HCl. pH will be less than 7.
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