The following techniques are used to quantitatively estimate extr… - Vidyadip

Question

The following techniques are used to quantitatively estimate extra elements in organic compound. Identify the name of the method and the element estimated by this method.
i. A known mass of an organic compound is heated with fuming $\mathrm{HNO}_3$ in presence of $\mathrm{AgNO}_3$.
ii. Organic compound is heated with dry copper oxide in atmosphere of $\mathrm{CO}_2$.
iii. Organic compound is heated with conc. $\mathrm{H}_2 \mathrm{SO}_4$.

✓

Answer

Estimation of halogen by Carius method.
Estimation of nitrogen by Dumas method.
Estimation of nitrogen by Kjeldahl's method.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Organic Chemistry: Some Basic Principles and Techniques→Organic Chemistry: Some Basic Principles and Techniques — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which of the following compounds are aromatic according to Huckel’s rule?

Write the Lewis dot structure of the CO molecule.

Similar to electron diffraction, neutron diffraction microscope is also used for the determination of the structure of molecules. If the wavelength used here is 800pm, calculate the characteristic velocity associated with the neutron.

Give reasons for the following:

Elements in the same group have similar physical and chemical properties.
O has lower ionization enthalpy than N.
Noble gases have high positive values of electron gain enthalpies.

How many atoms are present in 1 ml of $\mathrm{NH}_3$ at STP?

A tetravalent element forms monoxide and dioxide with oxygen. When air is passed over heated element (1273 K), producer gas is obtained. Monoxide of the element is a powerful reducing agent and reduces ferric oxide to iron. Identify the element and write formulas of its monoxide and dioxide. Write chemical equations for the formation of producer gas and reduction of ferric oxide with the monoxide.

A white solid 'P', on strong heating, decomposes to give reddish brown gas 'R' and a residue 'Q' and a colourless gas. The residue 'R' is yellow when hot and white when cold. The solution of white solid 'P' in water gives white precipitate 'S' with conc. NaOH. The white form colourless solution. Identify 'P', 'Q', 'R', 'S' and write the chemical reactions involved.

A black dot used as a full stop at the end of a sentence has a mass of about one attogram. Assuming that the dot is made up of carbon, calculate the approximate number of carbon atoms present in the dot?

Suggest the name of a Lewis acid other than anhydrous aluminium chloride which can be used during ethylation of benzene.

Indicate the type of bonds present in $\mathrm{NH}_4 \mathrm{NO}_3$ and state the mode of hybridisation of two N -atoms in it.