Answer Posted / ellie.

brass is 70% copper 30% zinc

How do you express the total hardness of water?

1138

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What is the role of stannous chloride?

1367

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Which is the indicator used in the determination of cao I cement solution?

970

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Define Vulcanization?

1158

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State lambert’s law.

1195

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What is phase transfer catalyst?

1087

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Why ph scale range is 14? Why it is not less or not greater than 14?

1197

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Why ph scale range is 14?

1076

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What is modern definition(iupac) of ph?

1225

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Why is acetone used for cleaning viscometer?

1355

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Explain the structure of a dna molecule?

1052

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What is pka of acid?

1150

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

1217

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What are the constituents of cements?

1049

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How many millilitre is equal to 1 litre and how many microliter is equal to litre?

1078

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