1
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Kf for water is 1.86K kg mol–1. If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol (C2H6O2) must you add to get the freezing point of the solution lowered to –2.8oC ?
A
72 g
B
93 g
C
39 g
D
27 g
2
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
2–Hexyne gives trans–2–Hexene on treatment with :
A
Pt/H2
B
Li/NH3
C
Pd/BaSO4
D
LiAlH4
3
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide ?
A
Tertiary butyl chloride
B
Neopentane
C
Isohexane
D
Neohexane
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
The pH of a 0.1 molar solution of the acid HQ is 3. The value of the ionization constant, Ka of this acid is :
A
3 $$\times$$ 10–1
B
1 $$\times$$ 10–3
C
1 $$\times$$ 10–5
D
1 $$\times$$ 10–7

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