enEnglishguગુજરાતી
JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
For per gram of reactant, the maximwn quantity of \(N_2\) gas is produced in which of the following thermal decomposition reactions? (Given: Atomic wt. : \(Cr\, = 52\, u, Ba\, = 137\, u\)).
- A \(Ba(N_3)_2(s)\to Ba(C) + 3N_2(g)\)
- B \((NH_4)_2Cr_2O_7(s) \to \)\(N_2(g) + 4H_2O(g) + Cr_2O_3(s)\)
- C \(2NH_3(g)\to N_2(g) + 3H_2(g)\)
- D \(2NH_4NO_3(s) \to \)\(2N_2(g) + 4H_2O(g) + O_2(g)\)
Answer & Solution
Correct Answer
(C) \(2NH_3(g)\to N_2(g) + 3H_2(g)\)
Step-by-step Solution
Detailed explanation
\((a)\) Molar mass of \(Ba(N_3)_2(s) = 221\,g/mol\) \(1\) mole of \(Ba(N_3)_2(s)\) will give \(3\) moles of \(N_2\) hence \(\frac{{1\,g}}{{221\,g/mol}}\) moles of \(Ba(N_3)_2(s)\) will give \(3 \times \frac{1}{{221}} = 0.014\) moles of \(N_2\) \((b)\) Molar mass of…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- CORRECT order of stability for the following is
\( CH_{2}=CH^{-}, CH_{3}-CH_{2}^{-}, CH\equiv C^{-} \)JEE Mains 2026 Hard - Hemoglobin contains \(0.34 \%\) of iron by mass. The number of \(Fe\) atoms in \(3.3 g\) of hemoglobin is.(Given : Atomic mass of \(Fe\) is \(56\,u , N _{ A }\) in \(6.022\) \(\left.\times 10^{23} mol ^{-1}\right)\)JEE Mains 2022 Hard
- Total number of species from the following with central atom utilising \(2 \mathrm{p}^2\) hybrid orbitals for bonding is _______.
[\(\mathrm{NH}_3, \mathrm{SO}_2, \mathrm{SiO}_2, \mathrm{BeCl}_2, \mathrm{C}_2 \mathrm{H}_2, \mathrm{C}_2 \mathrm{H}_4, \mathrm{BCl}_3, \mathrm{HCHO}\), \(\mathrm{C}_6 \mathrm{H}_6, \mathrm{BF}_3, \mathrm{C}_2 \mathrm{H}_4 \mathrm{Cl}_2\)]JEE Mains 2024 Medium - Given below are statements about some molecules/ions.
Identify the CORRECT statements.
A. The dipole moment value of \( NF_{3} \) is higher than that of \( NH_{3} \)
B. The dipole moment value of \( BeH_{2} \) is zero.
C. The bond order of \( O_{2}^{2-} \) and \( F_{2} \) is same.
D. The formal charge on the central oxygen atom of ozone is -1.
E. In \( NO_{2}, \) all the three atoms satisfy the octet rule, hence it is very stable.
Choose the correct answer from the options given below :JEE Mains 2026 Easy - The reaction of \(\mathrm{H}_{3} \mathrm{N}_{3} \mathrm{B}_{3} \mathrm{Cl}_{3}\) \((A)\) with \(\mathrm{LiBH}_{4}\) in tetrahydrofurane gives inorganic benzene \((B)\). Further, the reaction of \((A)\) with \((C)\) leads to \(\mathrm{H}_{3} \mathrm{N}_{3} \mathrm{B}_{3}(\mathrm{Me})_{3}\). than Compounds \((\mathrm{B})\) and \((\mathrm{C})\) respectively, areJEE Mains 2020 Hard
- In the chemical reaction given above \(A\) and \(B\) respectively are :
JEE Mains 2021 Hard
More PYQs from JEE Mains
- particle moves with simple harmonic motion in a straight line. In first \(\tau\ s\), after starting from rest it travels a distance \(a\), and in next \(\tau\ s\) it travels \(2a\), in same direction, thenJEE Mains 2014 Hard
- For some \(\theta \in\left(0, \frac{\pi}{2}\right),\) if the eccentricity of the hyperbola, \(x^{2}-y^{2} \sec ^{2} \theta=10\) is \(\sqrt{5}\) times the eccentricity of the ellipse, \(x^{2} \sec ^{2} \theta+y^{2}=5,\) then the length of the latus rectum of the ellipse isJEE Mains 2020 Hard
- An organic compound \(A\), \(C_5H_8O\); reacts with \(H_2O\), \(NH_3\) and \(CH_3COOH\) as described below \(A\) is
JEE Mains 2014 Hard - Two travelling waves produces a standing wave represented by equation, \({y}=1.0\, {mm} \cos \left(1.57 \,{cm}^{-1}\right) {x} \sin \left(78.5\, {s}^{-1}\right) {t}\) The node closest to the origin in the region \({x}>0\) will be at \({x}=\ldots \ldots \ldots\, {cm}\)JEE Mains 2021 Medium
- Given below are two statements: Statement \(I:\) A truck and a car moving with same kinetic energy are brought to rest by applying brakes which provide equal retarding forces. Both come to rest in equal distance. Statement \(II:\) A car moving towards east takes a turn and moves towards north, the speed remains unchanged. The acceleration of the car is zero. In the light of given statements, choose the most appropriate answer from the options given below.JEE Mains 2023 Medium
- Consider the line \(L\) given by the equation \(\frac{x-3}{2}=\frac{y-1}{1}=\frac{z-2}{1}\). Let \(Q\) be the mirror image of the point \((2,3,-1)\) with respect to \(L\). Let a plane \(P\) be such that it passes through \(Q\), and the line \(L\) is perpendicular to \(P.\) Then which of the following points is on the plane \(P\) ?JEE Mains 2021 Medium