1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Freezing point of an aqueous solution is (-0.186)oC. Elevation of boiling point of the same solution is Kb = 0.512 oC, Kf = 1.86 oC, find the increase in boiling point.
A
0.186 oC
B
0.0512 oC
C
0.092 oC
D
0.2732 oC
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
RNA is different from DNA because RNA contains
A
ribose sugar and thymine
B
ribose sugar and uracil
C
deoxyribose sugar and thymine
D
deoxyribose sugar and uracil
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
How do we differentiate between Fe3+ and Cr3+ in group III?
A
by taking excess of NH4OH solution
B
by increasing $$NH_4^+$$ ion concentration
C
by decreasing OH- ion concentration
D
both (b) and (c)
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
When primary amine reacts with chloroform in ethanoic KOH then the product is
A
an isocyanide
B
an aldehyde
C
a cyanide
D
an alcohol
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