A colourless, neutral, paramagnetic oxide of Nitrogen $'P'$ on oxidation gives reddish brown gas $Q$. $Q$ on cooling gives colourless gas $R$. $R$ on reaction with P gives blue solid $S$. Identify $P , Q , R , S$, respectively
- $N _{2} O\, NO\, NO _{2} \,N _{2} O _{5}$
- $N _{2} O\, NO _{2}\, N _{2} O _{4} \,N _{2} O _{3}$
- $NO \,NO _{2} \,N _{2} O _{4}\, N _{2} O _{3}$
- $NO \,NO\, N _{2} O _{4} \,N _{2} O _{5}$
The Correct Option is C
Solution and Explanation
Let's solve the question by assessing the given options and considering the chemical properties of nitrogen oxides:
The question asks for a colorless, neutral, and paramagnetic oxide of nitrogen. Let’s analyze the properties of each option:
- N_2O (Nitrous oxide):
- Colorless: Yes
- Neutral: Yes
- Paramagnetic: No, it is diamagnetic.
- NO (Nitric oxide):
- Colorless: Yes
- Neutral: Yes
- Paramagnetic: Yes, due to the unpaired electron.
- NO_2 (Nitrogen dioxide):
- Colorless: No, it is reddish-brown.
- Neutral: It is acidic.
- Paramagnetic: Yes, due to the unpaired electron.
- N_2O_4 (Dinitrogen tetroxide):
- Colorless: Yes, in liquid form at low temperatures.
- Neutral: It is acidic.
- Paramagnetic: No, it is diamagnetic as it dimerizes from NO₂ in low temperatures.
- N_2O_5 (Dinitrogen pentoxide):
- Colorless: Yes
- Neutral: No, it is acidic.
- Paramagnetic: No, it is diamagnetic.
- N_2O_3 (Dinitrogen trioxide):
- Colorless: No, it is blue.
- Neutral: No, it is acidic.
- Paramagnetic: No, it is diamagnetic.
Based on this analysis, NO matches the properties of being colorless, neutral, and paramagnetic due to the presence of an unpaired electron.
Therefore, the correct answer is NO, making the correct choice: NO \,NO _{2} \,N _{2} O _{4}\, N _{2} O _{3}.
Top Questions on Nitrogen
Given below are two statements I and II.
Statement I: Dumas method is used for estimation of "Nitrogen" in an organic compound.
Statement II: Dumas method involves the formation of ammonium sulfate by heating the organic compound with concentrated H\(_2\)SO\(_4\). In the light of the above statements, choose the correct answer from the options given below:- Nitrogen is an essential component of:
- Determine the presence of nitrogen atom in the given organic compound O₃.
- While estimating the nitrogen present in an organic compound by Kjeldahl’s method, the ammonia evolved from 0.25g of the compound neutralized 2.5mL of 2M H2SO4. The percentage of nitrogen present in organic compound is ________
- Nitrogen gas is obtained by thermal decomposition of
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Concepts Used:
Nitrogen
- Nitrogen is the 7th element of the periodic table between carbon and oxygen.
- It’s a crucial part of amino acids.
- Around 80% of the Earth’s atmosphere comprises nitrogen gas.
- It is odorless and colorless in nature, mostly diatomic non-metal gas.
- Since it has 5 electrons in its outermost shell, most of its compounds are trivalent.
- It is a combination of all living tissues. Since it is a component of DNA and part of a genetic code, it is a necessary element of life.
- It is found in nitrates and further nitrites in soil and water.
- The nitrogen cycle comprises all these substances and is interconnected. Industrial companies emit nitrogen enormously, increasing nitrite and nitrate content in the ground and water, being the repercussion of reactions in the nitrogen cycle.