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1
IIT-JEE 2011 Paper 1 Offline
MCQ (Single Correct Answer)
+1
-0.25
Among the following compounds, the most acidic is
A
p-nitrophenol
B
p-hydroxybenzoic acid
C
o-hydroxybenzoic acid
D
p-toluic acid
2
IIT-JEE 2011 Paper 1 Offline
MCQ (Single Correct Answer)
+1
-0.25
Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is
A
1.78 M
B
2.00 M
C
2.05 M
D
2.22 M
3
IIT-JEE 2011 Paper 1 Offline
MCQ (More than One Correct Answer)
+2
-0.5
Extraction of metal from the ore cassiterite involves
A
carbon reduction of an oxide ore
B
self-reduction of a sulphide ore
C
removal of copper impurity
D
removal of iron impurity
4
IIT-JEE 2011 Paper 1 Offline
Numerical
+4
-0
The work function ( φ ) of some metals is listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is
Metal Li Na K Mg Cu Ag Fe Pt W
Ф (eV) 2.4 2.3 2.2 3.7 4.8 4.3 4.7 6.3 4.75
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