Answer Posted / abhishek chanchal

75mg of any substance->100ml of solvent
further 1ml from 100ml in 10 ml of solvent=75ppm

Mention a few advantages of photoelectric colorimetric determination.

1314

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Explain the structure of a dna molecule?

1003

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What is the principle involved in conductometric titration?

1085

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How is brass solution prepared?

1059

---

State lambert’s law.

1143

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Mention a few important criteria for satisfactory colorimetric analysis.

1480

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Why is acetic acid added?

1082

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What is iron ore consists of?

999

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why is acetic acid less conductive than hcl?

1104

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How are pka and strength of a weak acid related?

977

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What is the role of silver sulphate?

1047

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What is glacial acetic acid?

999

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Explain the process of spontaneous combustion?

978

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How many electrons does benzene have?

982

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Explain how buffer works?

1044

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