1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
In which of the following arrangements the order is NOT according to the property indicated against it?
A
Li < Na < K < Rb Increasing metallic radius
B
I < Br < F < Cl Increasing electron gain enthalpy (with negative sign)
C
B < C < N < O Increasing first ionization enthalpy
D
Al3+ < Mg2+ < Na+ < F- Increasing ionic size
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Lattice energy of an ionic compounds depends upon
A
Charge on the ion only
B
Size of the ion only
C
Packing of ions only
D
Charge on the ion and size of the ion
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Let $$f:( - 1,1) \to B$$, be a function defined by
$$f\left( x \right) = {\tan ^{ - 1}}{{2x} \over {1 - {x^2}}}$$,
then $$f$$ is both one-one and onto when B is the interval
A
$$\left( {0,{\pi \over 2}} \right)$$
B
$$\left[ {0,{\pi \over 2}} \right)$$
C
$$\left[ { - {\pi \over 2},{\pi \over 2}} \right]$$
D
$$\left( { - {\pi \over 2},{\pi \over 2}} \right)$$
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
A real valued function f(x) satisfies the functional equation

f(x - y) = f(x)f(y) - f(a - x)f(a + y)

where a is given constant and f(0) = 1, f(2a - x) is equal to
A
- f(x)
B
f(x)
C
f(a) + f(a - x)
D
f(- x)
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