MEDIUM
JEE Main
IMPORTANT
Earn 100
An average person needs about energy per day. The amount of glucose (molar mass ) needed to meet this energy requirement is ______
(Use : (glucose))
50% studentsanswered this correctly
Important Questions on Solutions
MEDIUM
JEE Main
IMPORTANT
At , the vapour pressure of benzene is torr and that of methyl benzene is torr. The mole fraction of benzene in the vapour phase at above an equimolar mixture of benzene and methyl benzene is (Nearest integer)
EASY
JEE Main
IMPORTANT
The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the following process can explain this?
MEDIUM
JEE Main
IMPORTANT
An open beaker of water in equilibrium with water vapour is in a sealed container. When a few grams of glucose are added to the beaker of water, the rate at which water molecules :
EASY
JEE Main
IMPORTANT
For an ideal solution of two components , which of the following is true?
HARD
JEE Main
IMPORTANT
The observed osmotic pressure for a solution of at is . The expected and experimental (observed) values of Van't Hoff factor '' will be respectively;
HARD
JEE Main
IMPORTANT
Choose the correct statement with respect to the vapour pressure of a liquid among the following :
EASY
JEE Main
IMPORTANT
The mass of a non-volatile, non-electrolyte solute (molar mass ) needed to be dissolved in octane to reduce its vapour pressure by , is:
HARD
JEE Main
IMPORTANT
Molecules of benzoic acid dimerise in of benzene. ' ' of benzoic acid shows a depression in freezing point equal to . If the percentage association of the acid to form dimer in the solution is , then is: Given that , molar mass of benzoic acid
