IIT JEE : Solutions QUESTIONS AND ANSWERS :: part3 : 11 to 15
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
11.The molecular mass of ethyl alcohol is 46. The molality of a solution of ethyl alcohol in water containing 23.0 g of ethyl alcohol in 500 ml solution is |
2.5 M |
3.0 M |
1.0 M |
1.5 M |
12.The molarity of pure water is |
90 |
556 |
55.6 |
9 |
13.Osmotic pressure of a solution increases by |
decreasing the temperature |
increasing the volume |
increasing the number of molecules of the solute |
none of the above. |
14.Two beakers contain 1 L and 250 ml of pure water respectively. What is same in them? |
number of moles |
number of molecules |
molarity |
mass. |
15.18% (W/V) solution of urea (Mol. Mass = 60) is |
1 M |
2 M |
0.3 M |
3 M. |
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