1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Butene-1 may be converted to butane by reaction with
A
Sn - HCI
B
Zn - Hg
C
Pd/H2
D
Zn - HCI
2
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one of the following characteristics is not correct for physical adsorption?
A
Adsorption increases with increase in temperature
B
Adsorption is spontaneous
C
Both enthalpy and entropy of adsorption are negative
D
Adsorption on solids is reversible
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
How many unit cells are present in a cubeshaped ideal crystal of NaCl of mass 1.00 g? [Atomic masses: Na = 23, Cl = 35.5]
A
5.14 $$\times$$ 1021 unit cells
B
1.28 $$\times$$ 1021 unit cells
C
1.71 $$\times$$ 1021 unit cells
D
2.57 $$\times$$ 1021 unit cells
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A pressure cooker reduces cooking time for food because
A
boiling point of water involved in cooking is increased
B
the higher pressure inside the cooker crushes the food material
C
cooking involves chemical changes helped by a rise in temperature
D
heat is more evenly distributed in the cooking space
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