What type of solution is an alloy?

What is the final molarity of a solution obtained by mixing $480 \, mL$ of $1.5 \, M$ solution and $520 \, mL$ of $1.2 \, M$ solution (in $, M$)?

The molar concentration of chloride ions in the resulting solution of $300 \ mL$ of $3.0 \ M$ $NaCl$ and $200 \ mL$ of $4.0 \ M$ $BaCl_{2}$ will be (in $M$)

Which of the following is incorrect for the mole fraction $(x)$?

The mole fraction of the solute in a $1 \ m$ (molal) aqueous solution is:

What type of solution is ethyl alcohol in water?