1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Name the two type of the structure of silicate in which one oxygen atom of [SiO4]4$$-$$ is shared?
A
Linear chain silicate
B
Sheet silicate
C
Pyrosilicate
D
Three dimensional
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Clemmensen reduction of a ketone is carried out in the presence of which of the following?
A
Glycol with KOH
B
Zn-Hg with HCl
C
LiAlH4
D
H2 and Pt as catalyst
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in which of the following order?
(At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)
A
Mn > Fe > Cr > Co
B
Fe > Mn > Co > Cr
C
Co > Mn > Fe > Cr
D
Cr > Mn > Co > Fe
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Acidified K2Cr2O7 solution turns green when Na2SO3 is added to it. This is due to the formation of
A
Cr2(SO4)3
B
CrO$$_4^{2 - }$$
C
Cr2(SO3)3
D
CrSO4
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