1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is not true regarding (+) lactose?
A
On hydrolysis (+) lactose gives equal amount of D(+) glucose and D(+) galactose.
B
(+) Lactose is a $$\beta $$-glucoside formed by the union of a molecule of D(+) glucose and a molecule of D(+) galactose.
C
(+) Lactose is a reducing sugar and does not exihibit mutarotation.
D
(+) Lactose, C12H22O11 contains 8-OH groups
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Of the following which one is classified as polyester polymer?
A
Terylene
B
Bakelite
C
Melamine
D
Nylon-6,6
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The van't Hoff factor $$i$$ for a compound which undergoes dissociation in one solvent and association in other solvent is respectively
A
less than one and greater than one
B
less than one and less than one
C
greater than one and less than one
D
greater than one and greater than one.
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The freezing point depression constant for water is $$-$$1.86o C m$$-$$1. If 5.00 g Na2SO4 is dissolved in 45.0 g H2O, the freezing point is changed by $$-$$3.82oC. Calculate the van't Hoff factor for Na2SO4.
A
2.05
B
2.63
C
3.11
D
0.381
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