The tanks used by scuba divers are filled with air diluted with 11.7% He ___________

(a)

56.2% N₂ and 32.1% O₂

(b)

56.2% O₂ and 32.1% N₂

(c)

50.2% N₂ and 38.1%O₂

(d)

50.2% O₂ and 38.1% N₂

The blocking of capillaires due to sudden release of bubbles of N₂ gas in blood is known as ______

(a)

bends

(b)

blends

(c)

mends

(d)

all of these

Which of the following gas should have maximum value for k_H?

(a)

He

(b)

H₂

(c)

N₂

(d)

CO₂

The increase in the temperature of the aqueous solution placed in a closed vessel will result in its _________

(a)

molarity to increase

(b)

molarity to decrease

(c)

mole fraction to increase

(d)

mass % increase

In a binary solution __________

(a)

solvent may be liquid

(b)

solvent may be solid

(c)

solute may be gas

(d)

any of these