1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The correct order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is
A
Mn > Cr > Ti > V
B
Ti > V > Cr > Mn
C
Cr > Mn > V > Ti
D
V > Mn > Cr > Ti
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Bond dissociation enthalpy of H2, Cl2 and HCl are 434, 242 and 431 kJ mol$$-$$1 respectively. Enthalpy of formation of HCl is
A
$$-$$ 93 kJ mol$$-$$1
B
245 kJ mol$$-$$1
C
93 kJ mol$$-$$1
D
$$-$$ 245 kJ mol$$-$$1
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
What volume of oxygen gas (O2) measuread at 0oC and 1 atm, is needed to burn completely 1 L of propane gas (C3H8) measured under the same conditions ?
A
5 L
B
10 L
C
7 L
D
6 L
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H, 9.67%. The empirical formula of the compound would be
A
CHO
B
CH4O
C
CH3O
D
CH2O