Embibe Experts Solutions for Chapter: Some Basic Concepts of Chemistry, Exercise 1: Level 1

If $\mathrm{V} \mathrm{mL}$ of the vapours of substance at $\mathrm{NTP}$ weights $\mathrm{W} \mathrm{g}$, then molecular weight of  the substance is

The volume of a gas at $\mathrm{NTP}$ produced by $100\mathrm{g}$ of ${\mathrm{CaC}}_2$ with water:

${\mathrm{CaC}}_2+{\mathrm{H}}_2\mathrm{O}⟶\mathrm{Ca}(\mathrm{OH}{)}_2+{\mathrm{C}}_2{\mathrm{H}}_2$

The weight of lime obtained by heating $200 \mathrm{kg}$ of $95\%$ pure limestone is:

The mole fraction of water in a solution containing $117 \mathrm{g}$ sodium chloride and $900 \mathrm{g}$ of water is?

Which of the following concentration factor is affected by change in temperature?

$250 \mathrm{ml}$ of $0.5 \mathrm{M} \mathrm{KCl}$ is diluted with water to $500 \mathrm{ml}$ of solution, the number of chloride ions in the resulting solution are:

The molarity of the solution containing $2.8\%$ $\mathrm{w}/\mathrm{v}$ solution of $\mathrm{KOH}$ is ?

The molality of the solution containing $20\%$ $\mathrm{w}/\mathrm{w}$ solution of $\mathrm{NaOH}$ is