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1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
The number of d-electrons retained in Fe2+ (At no of Fe = 26) ion is :
A
4
B
5
C
6
D
3
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Change Language
A red solid is insolvable in water. However it becomes soluble if some $$K{\rm I}$$ is added to water. Heating the red solid in a test tube results in liberation of some violet colored fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is :
A
$$Hg{{\rm I}_2}$$
B
$$HgO$$
C
$$P{b_3}{O_4}$$
D
$${\left( {N{H_4}} \right)_2}C{r_2}{O_7}$$
3
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
4
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
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