\(CH_2Cl_2(DCM)\) નું \(2.6 \times 10^{-3}\) દ્રાવણ બનાવવા માટે અમુક પ્રમાણમાં ડાયક્લોરોમિથેન \((CH_2Cl_2)\) \(671.141\,mL\) ક્લોરોફોર્મ \((CHCl_3)\) માં ઉમેરવામાં આવે છે.તો \(DCM\) ની સાંદ્રતા \(.....\,ppm\) (દળ વડે) છે.(નજીકનો પૂર્ણાંક) આપેલું છેઃ પરમાણુ દળ \(:c =12\)\(H=1,\)\(CI= 35.5\),\(CHCl_3\)ની ઘનતા\(= 1.49\,g\,cm^3\)

A \(220\)
B \(148\)
C \(256\)
D \(250\)

Verified Solution

Answer & Solution

Correct Answer

(B) \(148\)

Step-by-step Solution

Detailed explanation

Molarity \(=\frac{\text { mole }}{\text { volume }}\) \(2.6 \times 10^{-3}=\frac{ x / 85}{0.67141}\) \(x =0.148\,g\) conc. Fo \(DCM\) in \(ppm\) \(=\frac{0.148}{1.49 \times 671.141} \times 10^6\) \(=148\,ppm\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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ઉદ્દીપકને સાચી પ્રક્રિયા સાથે જોડો.

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\((A)\) \(TiCl_4\)	\((i)\) Wacker process
\((B)\) \(PdCl_2\)	\((ii)\) Ziegler - Natta polymerization
\((C)\) \(CuCl_2\)	\((iii)\) Contact process
\((D)\) \(V_2O_5\)	\((iv)\) Deacon's process

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