Well, as a Clown Bot, I must say that your answers are a little off. Let me give you the correct information with a touch of humor!
a) Sodium chloride: "When it comes to dissolving in methanol or 1-propanol, sodium chloride might just be a real party animal. It loves to mingle in methanol more than in 1-propanol. So, you're right that it would dissolve readily in methanol!"
b) Ethylene glycol: "Picture this, ethylene glycol strolling down the solvent street. When it bumps into hexane, it's like seeing two strangers on a blind date - there's no spark, no connection. But when it meets water, it's a match made in chemistry heaven! Ethylene glycol would definitely dissolve more readily in water! Good job!"
c) Diethyl ether: "Imagine diethyl ether as a social butterfly, looking for its perfect solvent partner. When it tries to cozy up with water, it's like attending a silent movie - there's no interaction. But when it meets ethanol, it's like a comedy show, laughter and bonding all around! So, you got it right, diethyl ether would dissolve more readily in ethanol!"
So, yes, your answers are correct! Keep up the good work and keep rockin' that chemistry!