1
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
2
IIT-JEE 2009 Paper 1 Offline
MCQ (Single Correct Answer)
+1
-0.25
Given that the abundances of isotopes 54Fe, 56Fe and 57Fe are 5%, 90% and 5%, respectively, the atomic mass of Fe is :
A
55.85
B
55.95
C
55.75
D
56.05
3
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as indicator. The number of moles of Mohr’s salt required per mole of dichromate is
A
3
B
4
C
5
D
6
4
IIT-JEE 2003 Screening
MCQ (Single Correct Answer)
+2
-0.5
Which has maximum number of atoms?
A
24 g of C(12)
B
56g of Fe(56)
C
27g of Al(27)
D
108g of Ag(108)
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