Answer Posted / sthandiwe zondo

almost every thing in this world evolve from organic
chemistry.The food we eat , the clothes we wear , the water
we drink and ect.. if there is no organic chemistry there
is no life.

what is the indicator used?

1071

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What are the electrodes used in potentiometer titration?

1064

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why we shrink our body during cold

1826

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Cholesterol is a compound suspected of causing hardening of the arteries. The formula of cholesterol is C27H46O. a. A sample of cholesterol is isolated from the arterial lining of a 60-year-old American male. What is the formula of this compound? b. Cholesterol is extracted from a chicken’s egg. What is the formula of this compound?

3226

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can we Consider the Purity threshold and Purity angle in place of peak purity for the specificity test for method verification

1878

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What is meant by ph of a solution?

1077

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How is librated iodine estimated?

1132

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Mention a few application of cod test in environmental engineering practice.

1276

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Which is the best conductor of electricity?

1075

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Why is ph increases suddenly after the equivalence point?

1074

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What is the reaction that occurs during the titration?

1132

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Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?

3013

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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.

1464

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Define what is avogadro’s law?

1120

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How is temporary hardness be removed?

1117

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