1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is
A
more active nature of the actinoids
B
more energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals
C
lesser energy difference between 5f and 6d orbitals than that between 4f and 5d orbitals
D
greater metallic character of the lanthanoids than that of the corresponding actinoids.
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
[Cr(H2O)6]Cl3 (At. no. of Cr = 24) has a magnetic momen of 3.83 B.M. The correct distribution of 3d electrons in the chromium of the complex is
A
$$3d_{x\,y}^1,\,3d_{y\,z}^1,\,3d_{z^2}^{1}$$
B
$$3d_{\left( {x^2 - y^2} \right)}^1,\,3d_{z^2}^1,\,3d_{xz}^1$$
C
$$3d_{x\,y}^1,\,\,3d_{\left( {x^2 - y^2} \right)}^1,\,3d_{y\,z}^1$$
D
$$3d_{x\,y}^1,\,3d_{y\,z}^1,\,3d_{x\,z}^1$$
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
[Co(NH3)4(NO2)2]Cl exhibits
A
linkage isomerism, geometrical isomerism and optical isomerism
B
linkage isomerism, ionization isomerism and optical isomerism
C
linkage isomerism, ionization isomerism and geometrical isomerism
D
ionization isomerism, geometrical isomerism and oprical isomerism.
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
The velocity v of a particle at time t is given by v = at + $${b \over {t + c}}$$, where a, b and c are constants. The dimensions of a, b and c are
A
[L], [LT] and [LT$$-$$2]
B
[LT$$-$$2], [L] and [T]
C
[L2], [T] and [LT$$-$$2]
D
[LT$$-$$2], and [LT] and [L]
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