પીવાના પાણીમાં કોપરની મહતમ સૂચિત (prescribed) સાંદ્રતા જણાવો. ........ \(ppm\)

A \(0.5\)
B \(3\)
C \(5\)
D \(0.05\)

Verified Solution

Answer & Solution

Correct Answer

(B) \(3\)

Step-by-step Solution

Detailed explanation

Maximum prescribed concentration of copper in drinking water is \(3\, ppm\). Above this concentration water becomes toxic

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.

Same subject

સૂચિ \(-I\) સાથે સૂચિ \(-II\) ને જોડો.

સૂચિ \(-I\)	સૂચિ \(-II\)
\((a)\) ઝાયમેઝ	\((i)\) પેટ
\((b)\) ડાયાસ્ટેઝ	\((ii)\) યીસ્ટ
\((c)\) યુરેઝ	\((iii)\) માલ્ટ
\((d)\) પેપ્સીન	\((iv)\) સોયાબીન

નીચે આપેલા વિકલ્પોમાંથી સાચો જવાબ પસંદ કરો.

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