1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The atomic numbers of vanadium (V), Chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23, 24, 25 and 26. Which one of these may be expected to have the highest second ionization enthalpy?
A
Cr
B
Mn
C
Fe
D
V
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following nitrates will leave behind a metal on strong heating?
A
Copper nitrate
B
Manganese nitrate
C
Silver nitrate
D
Ferric nitrate
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The radius of La3+ (Atomic number of La = 57) is 1.06 Å. Which one of the following given values will be closest to the radius of Lu3+ (Atomic number of Lu = 71) ?
A
1.60 Å
B
1.40 Å
C
0.85 Å
D
1.60 Å
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is correct?
A
From a mixed precipitate of AgCl and AgI, ammonia solution dissolves only AgCl
B
Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution
C
On boiling a solution having K+, Ca2+ and HCO3 ions we get a precipitate of K2Ca(CO3)2.
D
Manganese salts give a violet borax bead test in the reducing flame
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