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The following pair constitutes a buffer is:
For the reaction $3\text{O}_2(g) \rightleftharpoons 2\text{O}_3(g)$ at $298\text{ K}$, $K_c$ is found to be $3.0 \times 10^{-59}$. If the concentration of $\text{O}_2$ at equilibrium is $0.040\text{ M}$, then the concentration of $\text{O}_3$ in $\text{M}$ is:
Consider the following reaction taking place in $1\text{ L}$ capacity container at $300\text{ K}$: $\text{A} + \text{B} \rightleftharpoons \text{C} + \text{D}$ If one mole each of A and B are present initially and at equilibrium $0.7\text{ mol}$ of C is formed, then the equilibrium constant ($K_c$) for the reaction is:
Which combination of the following substances will result in the formation of an acidic buffer when mixed?
In which of the following equilibria, $K_p$ and $K_c$ are NOT equal?
Consider the given reaction: $\text{PCl}_5 \rightleftharpoons \text{PCl}_3 + \text{Cl}_2$. At equilibrium at $500\text{ K}$, the concentration of $\text{PCl}_5 = 1.40\text{ M}$, concentration of $\text{Cl}_2 = 1.60\text{ M}$, concentration of $\text{PCl}_3 = 1.60\text{ M}$. Calculate $K_c$:
A compound that does not undergo $S_N1$ reaction with $\text{OH}^-$ is:
The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are $K_A$, $K_B$ and $K_C$, respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then
Which of the following compounds undergoes nucleophilic substitution reaction most easily?
Chloropicrin is obtained by the reaction of:
When hydrolyzed with aqueous KOH, compounds that undergo racemization are: (i) [Image Missing] (ii) $\text{CH}_3\text{CH}_2\text{CH}_2\text{Cl}$ (iii) [Image Missing] (iv) [Image Missing]
The reaction of $\text{C}_6\text{H}_5\text{CH=CHCH}_3$ with $\text{HBr}$ produces:
In $S_N2$ substitution reaction of the type $\text{R-Br} + \text{Cl}^- \xrightarrow{\text{DMF}} \text{R-Cl} + \text{Br}^-$, which one of the following has the highest relative rate?
Which of the following biphenyls is optically active?
Which of the following acts as a circuit protecting device?
Benzene reacts with $CH_3Cl$ in the presence of anhydrous $AlCl_3$ to form:
The correct order for the rate of $\alpha, \beta$-dehydrohalogenation for the following compounds is:
The products A and B obtained in the following reactions, respectively, are: $3\text{ROH} + \text{PCl}_3 \rightarrow 3\text{RCl} + \text{A}$ $\text{ROH} + \text{PCl}_5 \rightarrow \text{RCl} + \text{HCl} + \text{B}$
In the given reaction, the product P is:
P, Q and R in the above-mentioned sequence of reactions are respectively: