1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Change Language
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
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Change Language
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
3
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
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?
A
$$Cr_2O^{2-}_7$$ and H2O are formed
B
$$CrO^{2-}_4$$ is reduced to +3 state of Cr
C
$$CrO^{2-}_4$$ is oxidized to +7 state of Cr
D
Cr3+ and $$Cr_2O^{2-}_7$$ are formed
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