1
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
The correct order of increasing basicity of the given conjugate bases (R = CH3) is
A
$$RCO\overline O$$ < HC = $$\overline C$$ < $$\overline R$$ < $$\overline NH_2$$
B
$$\overline R$$ < HC = $$\overline C$$ < $$RCO\overline O$$ < $$\overline NH_2$$
C
$$RCO\overline O$$ < $$\overline NH_2$$ < HC = $$\overline C$$ < $$\overline R$$
D
$$RCO\overline O$$ < HC = $$\overline C$$ < $$\overline NH_2$$ < $$\overline R$$
2
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is
A
propene
B
1–butene
C
2–butene
D
ethene
3
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The edge length of a face centered cubic cell of an ionic substance is 508 pm. If the radius of the cation is 110 pm, the radius of the anion is :
A
288 pm
B
398 pm
C
618 pm
D
144 pm
4
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Percentages of free space in cubic close packed structure and in body centred packed structure are respectively :
A
30% and 26%
B
26% and 32%
C
32% and 48%
D
48% and 26%
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