1
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is :
A
benzoic acid
B
salicylaldehyde
C
salicylic acid
D
phthalic acid
2
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
Which of the following has an optical isomer ?
A
[Co(en)(NH3)2]2+
B
[Co(H2O)4(en)]3+
C
[Co(en)2(NH3)2]3+
D
[Co(NH3)3Cl]+
3
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
Which of the following pairs represents linkage isomers ?
A
[Pd (P Ph3)2 (NCS)2] and [Pd (P Ph3)2 (SCN)2]
B
[Co(NH3)5 NO3]SO4 and [Co(NH3)5 SO4]NO3
C
[Pt Cl2(NH3)4] Br2 and [Pt Br2(NH3)4] Cl2
D
[Cu (NH3)4] [Pt Cl4] and [Pt (NH3)4] [CuCl4]
4
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
Knowing that the Chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements is incorrect?
A
Because of the large size of the Ln (III) ions the bonding in its compounds is predominantly ionic in character.
B
The ionic sizes of Ln (III) decrease in general with increasing atomic number.
C
Ln (III) compounds are generally colourless
D
Ln (III) hydroxides are mainly basic in character.
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