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Nitrogen compounds: ammonia, oxides of nitrogen, nitric acid

36 questions on Nitrogen compounds: ammonia, oxides of nitrogen, nitric acid from the p-Block Elements: Groups 15 and 16 chapter: 8 NEET level, 14 JEE Main, 14 JEE Advanced. Each one opens with its answer and solution.

Practice this topic All p-Block Elements: Groups 15 and 16 topics

In the Haber process for the manufacture of ammonia, the catalyst used is NEET level
Which of the following can be used to dry ammonia gas? NEET level
The brown ring formed at the junction of the layers in the brown ring test for nitrate is due to the complex NEET level
Which oxide of nitrogen is a colourless, paramagnetic gas? NEET level
Which of the following statements about the gentle heating of ammonium salts is correct? JEE Main level
The gases evolved when copper reacts with (i) cold dilute HNO3 and (ii) hot concentrated HNO3 are, respectively, JEE Main level
Both metals in which of the following pairs become passive in cold concentrated nitric acid? JEE Main level
Hot concentrated nitric acid oxidises carbon, sulphur (S8) and white phosphorus (P4) (with NO2 as the reduction product) to, respectively, JEE Main level
Which of the following statements about ammonia are correct? JEE Main level
Which of the following statements about the oxides of nitrogen are correct? JEE Main level
Excess NaOH solution is boiled with 6.60 g of ammonium sulphate, (NH4)2SO4 (atomic masses: H 1, N 14, O 16, S 32). Only 75% of the ammonia formed is collected. ... JEE Main level
In an Ostwald-process plant, 120 mol of NH3 is converted completely to NO by air over a Pt-Rh catalyst. All the NO is oxidised to NO2, which is absorbed complet... JEE Advanced level
Zinc reacts with dilute nitric acid to give Zn(NO3)2, N2O and water. After balancing the equation by the electron-change method, the percentage of the nitric ac... JEE Advanced level
In the brown ring complex [Fe(H2O)5(NO)]^2+, treat the nitrosyl ligand as NO+, so that iron is in the +1 state, and assume the water ligands give a high-spin ar... JEE Advanced level
Excess aqueous sodium hydroxide is added to separate samples of N2O3, N2O4 and N2O5. The nitrogen-containing sodium salts obtained are, respectively, JEE Advanced level
Which of the following statements about nitric acid are correct? JEE Advanced level
Which of the following statements about oxides of nitrogen are correct? JEE Advanced level
For the exothermic equilibrium N2(g) + 3H2(g) <=> 2NH3(g), which single change increases both the rate at which equilibrium is attained and the equilibrium yiel... JEE Advanced level
Which of the following reactions is used in the laboratory to obtain nearly pure dinitrogen? NEET level
In the Haber process for ammonia, N2 + 3H2 <=> 2NH3, the catalyst and promoter used are respectively NEET level
The brown ring formed at the junction of the two layers in the brown ring test for nitrate is due to the complex NEET level
Nitrogen has an oxidation state of +1 in NEET level
Copper reacts with cold dilute nitric acid as 3Cu + 8HNO3 -> 3Cu(NO3)2 + 2NO + 4H2O. The ratio of moles of HNO3 acting as an acid to moles acting as an oxidisin... JEE Main level
Zinc reacts with dilute nitric acid to give Zn(NO3)2, N2O and water. The number of electrons gained by nitrogen per molecule of N2O formed is JEE Main level
Iodine is heated with concentrated nitric acid: I2 + HNO3 -> HIO3 + NO2 + H2O. The number of moles of NO2 evolved per mole of I2 oxidised is JEE Main level
When excess aqueous ammonia is added to aqueous copper(II) sulphate, the deep blue colour arises from JEE Main level
Ammonia is present in excess and is treated with chlorine: NH3 + Cl2 ->. The products are JEE Main level
Ammonium nitrate is heated gently to about 520 K. The gas evolved and the oxidation state of nitrogen in it are JEE Main level
Which of the following statements about oxides of nitrogen is/are correct? JEE Main level
Consider the statements: (I) NO2 reacts with cold water to give HNO2 and HNO3. (II) Solid N2O5 consists of NO2+ and NO3- ions. (III) N2O is paramagnetic. (IV) N... JEE Advanced level
Concentrated nitric acid is allowed to act on various substances. Select the correct statement(s). JEE Advanced level
In the brown ring complex [Fe(H2O)5NO]^2+, treat the nitrosyl ligand as NO+ and assume a high-spin arrangement of d electrons. The oxidation state of iron and t... JEE Advanced level
Select the correct statement(s) about ammonia. JEE Advanced level
A mixture of 1 mol N2 and 3 mol H2 reaches equilibrium in the Haber process after 0.5 mol of N2 has reacted. The mole fraction of NH3 in the equilibrium mixture... JEE Advanced level
Match the oxide of nitrogen in Column I with the description in Column II. Column I: (A) N2O3 (B) N2O4 (C) N2O5 (D) N2O. Column II: (p) anhydride of nitric acid... JEE Advanced level
Nitrogen dioxide (4.6 g, NO2 = 46 g/mol) is passed into water in the presence of excess oxygen according to 4NO2 + O2 + 2H2O -> 4HNO3 (take HNO3 = 63 g/mol). Th... JEE Advanced level