Answer Posted / tanish gupta

copper-60%
zinc-40%

What is buffer?

675

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What is the reaction that occurring between fas and potassium dichromate?

787

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Why ph scale range is 14?

623

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Define what is oxidation and reduction reaction?

619

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Does domestic/household used kerosene oil which is available in blue color (In India) can change its color over the due course of time say 8-10 years if keeping in plastic bottle? If so, in which color it will be turned to change, yellow or transparent or any other color. Please provide me the reply with strong technical approach. Since it has been asked during an interview. Please reply fast. I will be thankful to you if anyone can provide the supporting journals/write-ups/reference to favour of response.

989

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When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?

550

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What is the composition of ferroin?

642

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What is dextro-rotatory and levo-rotatory?

684

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What is german silver?

517

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Explain the process of spontaneous combustion?

599

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What is molar conductivity?

589

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What is meant by transmittance?

632

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What is the white precipitate produced at the end of point?

558

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Why is the role of glycerol & naoh?

601

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What forms the basis for colorimetric determination?

725

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