Answer Posted / zia ul hassan

copper 65 to 70%
zinc 25 to 27%
other balnce

What is german silver?

887

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Write the structural formula for edta.

1082

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What is specific conductivity?

1078

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How is hardness of water caused?

1120

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What is kentchin? Is it real?

1033

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What are the electrodes used in potentiometer titration?

1012

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what are the role of chemistry education in sustainable development

2575

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What are hard waters?

1014

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Mention a few advantages of photoelectric colorimetric determination.

1366

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How will you calculate how many moles of glucose present in 320 ml of 5.0 m of glucose solution?

1084

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Explain acid gas?

1032

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What is determining factor in the oxidation reduction reaction?

1425

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Why is ammonia solution added while preparing edta solution?

1377

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Give the others form of iron ore.

1010

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What is modern definition(iupac) of ph?

1226

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