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dB is a standard abbreviation used for t...

dB is a standard abbreviation used for the quantitative expression of

A

the density of bacteria in a medium

B

a particular pollutant

C

the dominant Bacillus in a culture

D

a certain pesticide

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The correct Answer is:
B
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Abbreviate NDRF

Quantitative estimation of C, H, and extra elements (e.g., N,S,P and halogens) is carried out by Liebig.s combustion, Carius, Dumas, and Kjeldahl.s method. In the quantitative estimation of phosphorous by using magnesia misture, the formula used is:

Quantitative estimation of C, H, and extra elements (e.g., N,S,P and halogens) is carried out by Liebig.s combustion, Carius, Dumas, and Kjeldahl.s method. In the quantitative estimation of oxygen by using I_2O_5 , the formula used is:

It is essential to wash a precipitation with water before its quantitative estimation . Why ?

In Carius method for the quantitative estimation of phosphorous, by using magnesia mixture, phosphorous is estimatied by :

In carius method for the quantitative estimation of sulphur, it is estimated by

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  8. Montreal protocol aims at

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