Medium
Fill in the blanks:
$(1)$ ........... solution is added to produce the precipitate of $BaSO_4$ in the estimation of sulphur.
$(2)$ .......... and .... precipitate will be produced by the estimation of phosphorus.
$(3)$ How many elements are estimated in organic compounds?
$(4)$ ......... gas is produced in the Dumas method,but ....... gas is produced in the Kjeldahl's method.
$(1)$ ........... solution is added to produce the precipitate of $BaSO_4$ in the estimation of sulphur.
$(2)$ .......... and .... precipitate will be produced by the estimation of phosphorus.
$(3)$ How many elements are estimated in organic compounds?
$(4)$ ......... gas is produced in the Dumas method,but ....... gas is produced in the Kjeldahl's method.
(N/A) $(1)$ $BaCl_2$ solution is added to produce the precipitate of $BaSO_4$ in the estimation of sulphur.
$(2)$ $Mg_2P_2O_7$ (magnesium pyrophosphate) or $(NH_4)_3PO_4 \cdot 12MoO_3$ (ammonium phosphomolybdate) precipitate is produced in the estimation of phosphorus.
$(3)$ There are $9$ elements estimated in organic compounds: $C, H, O, N, P, S, Cl, Br, I$.
$(4)$ $N_2$ gas is produced in the Dumas method,while $NH_3$ gas is produced in the Kjeldahl's method.
$(2)$ $Mg_2P_2O_7$ (magnesium pyrophosphate) or $(NH_4)_3PO_4 \cdot 12MoO_3$ (ammonium phosphomolybdate) precipitate is produced in the estimation of phosphorus.
$(3)$ There are $9$ elements estimated in organic compounds: $C, H, O, N, P, S, Cl, Br, I$.
$(4)$ $N_2$ gas is produced in the Dumas method,while $NH_3$ gas is produced in the Kjeldahl's method.
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View Solution$0.8 \ g$ of an organic compound was analysed by Kjeldahl's method for the estimation of nitrogen. If the percentage of nitrogen in the compound was found to be $42 \ \%$,then $.... \ mL$ of $1 \ M$ $H_2SO_4$ would have been neutralized by the ammonia evolved during the analysis.
DifficultJEE MAIN 2021
View SolutionFill in the blanks:
$(1)$ .......... gas is produced in Kjeldahl's method and absorbed in ...........
$(2)$ The excess $H_2SO_4$ is added in Kjeldahl's method and then the remaining $H_2SO_4$ is titrated with a calculated ..........
$(1)$ .......... gas is produced in Kjeldahl's method and absorbed in ...........
$(2)$ The excess $H_2SO_4$ is added in Kjeldahl's method and then the remaining $H_2SO_4$ is titrated with a calculated ..........
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