1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
In which of the following pairs are both the ions coloured in aqueous solution?
(At. no. : Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27)
A
Ni2+, Cu+
B
Ni2+, Ti3+
C
Sc3+, Ti3+
D
Sc3+, Co2+.
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following pairs constitutes a buffer?
A
HCl and KCl
B
HNO2 and NaNO2
C
NaOH and NaCl
D
HNO3 and NH4NO3
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
The orientation of an atomic orbital is governed by
A
principal quantum number
B
azimuthal quantum number
C
spin quantum number
D
magnetic quantum number.
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Given : The mass of electron is 9.11 $$ \times $$ 10$$-$$31 kg, Planck constant is 6.626 $$ \times $$ 10$$-$$34 J s, the uncertainty involved in the measurement of velocity within a distance of 0.1 $$\mathop A\limits^ \circ $$ is
A
5.79 $$ \times $$ 105 m s$$-$$1
B
5.79 $$ \times $$ 106 m s$$-$$1
C
5.79 $$ \times $$ 107 m s$$-$$1
D
5.79 $$ \times $$ 108 m s$$-$$1
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