What will be the molality of a solution having 18g of glucose (mol. wt. = 180) dissolved in 500g of wate
Anonymous Quiz
12%
1 m
27%
0.5 m
54%
0.2 m
7%
2 m
The normality of 10% (weight/volume) acetic acid is
Anonymous Quiz
12%
1 N
41%
10 N
36%
1.7 N
11%
0.83 N
In which ratio of volumes 0.4 M HCl and 0.9M HCl are to be mixed such that the concentration of the resultant solution becomes 0.7 MT
Anonymous Quiz
15%
4:9
41%
2:3
37%
3:2
7%
1:1
Which is not a colligative property in the following
Anonymous Quiz
79%
pH of a buffer solution
9%
Boiling point elevation
6%
Freezing point depression
6%
Relative lowering of vapour pressure
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In prokaryotes, chromatophores are
Anonymous Quiz
33%
Specialized granules responsible for colouration of cells.
6%
Structures responsible for organizing the shape of the organism.
18%
Inclusion bodies lying free inside the cells for carrying out various metabolic activities.
44%
Internal membrane system which becomes extensive and complex in photosynthetic bacteria.
Active transport across biomembrane involves
Anonymous Quiz
16%
Production of ATP
74%
Requirement of energy
5%
Production of toxin
4%
Release of energy
The best material for study of structure of cell membrane is
Anonymous Quiz
64%
RBC of human
8%
RBC of frog
26%
cheek cell of human
2%
liver cell of rat
Which of the following will determine the shape of the cells and provides a strong structural support to prevent the bacterium from bursting or collapsing?
Anonymous Quiz
6%
Plasmids
77%
Cell wall
10%
Mesosome
8%
Cell membrane
8.Which one of the following is not considered as part of the endomembrane system?
Anonymous Quiz
10%
Golgi complex
76%
Peroxisome
10%
Vacuole
4%
Lysosome
A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of 290 mm at 300 k. The vapour pressure of propyl alcohol is 200 mm. If the mole fraction of ethyl alcohol is 0.6, its vapour pressure (in mm) at the same temperature will be
Anonymous Quiz
23%
350
44%
300
23%
700
11%
360
The mass of glucose that should be dissolved in 50 g of water in order to produce the same lowering of vapour pressure as is produced by dissolving 1 g of urea in the same quantity of water 15
Anonymous Quiz
11%
1 g
48%
3 g
30%
6 g
11%
18 g
An aqueous solution of methanol in water has vapour pressure
Anonymous Quiz
7%
Equal to that of water
19%
Equal to that of methanol
50%
More than that of water
24%
less than that of water
An ideal solution is that which
Anonymous Quiz
14%
Shows positive deviation from Raoult's law
9%
Shows negative deviation from Raoult's law
9%
Has no connection with Raoult's law
68%
Obeys Raoult's law