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NEET · Chemistry · STD 11 - 1. Some basic concept of chemistry

यूरिया के \(100\, mL\) विलयन में इसके \(6.02 \times 10^{20}\) अणु उपस्थित हैं, इस विलयन की सांद्रता ........... \(M\) होगी

  1. A \(0.001\)
  2. B \(0.1\)
  3. C \(0.02\)
  4. D \(0.01\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(0.01\)

Step-by-step Solution

Detailed explanation

Number of moles \(=\frac{\text { number of molocules }}{\mathrm{NA}}\) \(=\frac{6.02 \times 10^{20}}{6.02 \times 10^{23}}=10^{-3} \mathrm{mol}\) Molar conc \(=\frac{n \times 1000}{V_{\text {solution }(\mathrm{mL})}}=\frac{10^{-3} \times 1000}{100}\)
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