JEE Mains · Chemistry · STD 12 - 3. Chemical kinetics
For a chemical reaction \(A \rightarrow B\), it was found that concentration of \(B\) is increased by \(0.2\, mol\,L^{-1}\) in \(30\, \mathrm{~min}\). The average rate of the reaction is \(......\times 10^{-1} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~h}^{-1}\). (Nearest integer)
- A \(1\)
- B \(2\)
- C \(3\)
- D \(4\)
Answer & Solution
Correct Answer
(D) \(4\)
Step-by-step Solution
Detailed explanation
\(\mathrm{A} \rightarrow \mathrm{B}\) \(\mathrm{t}=0 \quad\quad\quad\quad 0\) \(\mathrm{t}=30\, \mathrm{~min}\quad\quad 0.2 \,\mathrm{M}\) Av. Rate of reaction…
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
- For the disproportionation reaction \(2 Cu ^{+}( aq ) \rightleftharpoons Cu ( s )+ Cu ^{2+}( aq )\) at \(298\, K\) In \(K\) (where \(K\) is the equilibrium constant) is....... \(\times 10^{-1}\) Given \(\left( E _{ Cu ^{2+} / Cu ^{+}}^{0}=0.16 V \right.\) \(E _{ Cu ^{+} / Cu }^{0}=0.52 V\)\(\left.\frac{ RT }{ F }=0.025\right)\)JEE Mains 2020 Medium
- The oxoacid of sulphur that does not contain bond between sulphur atoms isJEE Mains 2019 Medium
- Which one of the following lanthanides exhibits \(+2\) oxidation state with diamagnetic nature ? (Given \(\mathrm{Z}\) for \(\mathrm{Nd}=60, \mathrm{Yb}=70, \mathrm{La}=57, \mathrm{Ce}=58\) )JEE Mains 2021 Easy
- The reaction \(\frac{1}{2} H _2( g )+ AgCl ( s ) \rightleftharpoons H ^{+}( aq )+ Cl ^{-}( aq )+ Ag ( s )\) occurs in which of the given galvanic cell.JEE Mains 2023 Medium
- An analyst wants to convert. \(1 L\,HCl\) of \(pH =1\) to a solution of \(HCl\) of \(pH 2\). The volume of water needed to do this dilution is \(......\,mL\). (Nearest Integer)JEE Mains 2023 Medium
- At constant volume, \(4\; mol\) of an ideal gas when heated from \(300\; \mathrm{K}\) to \(500\; \mathrm{K}\) changes its internal energy by \(5000\; \mathrm{J}\). The molar heat capacity at constant volume is ............... \(\mathrm{J\,mol}^{-1} \, \mathrm{K}^{-1}\)JEE Mains 2020 Hard
More PYQs from JEE Mains
- Number of molecules/species from the following having one unpaired electron is _______.
[\(\mathrm{O}_2, \mathrm{O}_2^{-1}, \mathrm{NO}, \mathrm{CN}^{-1}, \mathrm{O}_2^{2-}\)]JEE Mains 2024 Medium - \(5.33\) g of \(CrCl_3 \cdot 6H_2O\), which is a \(1 : 3\) electrolyte, is dissolved in water and is passed through a cation exchanger. The chloride ions in the eluted solution, on treatment with \(AgNO_3\) results in \(8.61\) g of \(AgCl\). The ratio of moles of complex reacted and moles of \(AgCl\) formed is _______ \(\times 10^{-2}\). (Nearest integer)
[Molar mass in g mol\(^{-1}\) Cr : \(52\), Ag : \(108\), Cl : \(35.5\), H : \(1\), O : \(16\)]JEE Mains 2026 Hard - \(\mathop \smallint \limits_0^\pi \sqrt {1 + 4{{\sin }^2}\frac{x}{2} - 4\sin \frac{x}{2}} \;dx = \)JEE Mains 2014 Hard
- A uniform metallic wire carries a current \(2\,A\). when \(3.4\,V\) battery is connected across it. The mass of uniform metallic wire is \(8.92 \times 10^{-3} \,kg\). density is \(8.92 \times 10^3\,kg / m ^3\) and resistivity is \(1.7 \times 10^{-8} \Omega- m\). The length of wire is \(l=............\,m\)JEE Mains 2023 Medium
- A bag contains \(4\) white and \(6\) black balls. Three balls are drawn at random from the bag. Let \(X\) be the number of white balls, among the drawn balls. If \(\sigma^{2}\) is the variance of \(X\), then \(100 \sigma^{2}\) is equal to.JEE Mains 2022 Hard
- A satellite is moving in a low nearly circular orbit around the earth. Its radius is roughly equal to that of the earth's radius \(R _{ e }\). By firing rockets attached to it, its speed is instantaneously increased in the direction of its motion so that is become \(\sqrt{\frac{3}{2}}\) times larger. Due to this the farthest distance from the centre of the earth that the satellite reaches is \(R\), value of \(R\) is\(....R_e\)JEE Mains 2020 Hard