Answer Posted / laxmi narasimham

there are 110 elements are discovered on the periodic table

How is the accuracy of the method determined?

1097

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Differentiate between modern periodic table and mendeleevs table?

1158

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How is the measurement of ph made?

1059

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State beer’s law.

982

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Why is ammonia solution added while preparing edta solution?

1378

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Mention the formula to calculate ph of a solution?

1356

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What is blank solution?

1081

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Give the others form of iron ore.

1011

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Explain extraction of ephedrine from a mineral block?

1048

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Why is estimation of copper done at 620 nm wave length?

1428

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Why is starch indicator added towards the end point?

978

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What is the reaction that occurs between iodine and sodium thiosulphate?

1037

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What is kentchin? Is it real?

1034

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Why is the color of the indicator drop remains the same at the end point?

1218

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Why is eriochrome black t indicator cannot be used in this experiment?

1166

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