Question

Arun has prepared 0.01% (by mass) solution of sodium chloride in water. Which of the following correctly represents the composition of the solutions ?

a] 0.10 g of NaCL + 99.90 g of water.
b] 0.11 g of NaCL + 100 g of water.
c] 0.01 g of NaCL + 99.99 g of water.
d] 1.00 g of NaCL + 100 g of water.

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Answer 1

$\huge\boxed{\fcolorbox{red}{yellow}{Solution:-}}$

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$\bold{The~ correct ~answer~ is ~[C].}$

$\rm{This~ is ~because:}$

$\bf\implies{Mass~}$%

${\rm→~{\dfrac{Mass~of~solute}{Mass~of~solute~+~Mass~of~solvent}}~×~100}$

${\rm→~{\dfrac{0.01}{0.01~+~99.99}}~×~100}$

${\rm→~{\dfrac{0.01}{100}}~×~100}$

${\bf→~{0.01~g}}$

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⠀⠀⠀⠀⠀ ⠀⠀нσρє ıт нєłρs

⠀⠀⠀⠀ ⠀⠀⠀ωıтн яєgαя∂s

⠀⠀⠀⠀ ⠀⠀⠀❤αя + ηαѵ❤

Answer 2

(c )is corect answer.

For answer see in picture.

I hope it will help you please give thanks