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The following equilibrium constants are given: $N_2 + 3H_2 \rightleftharpoons 2NH_3$; $K_1$ $N_2 + O_2 \rightleftharpoons 2NO$; $K_2$ $H_2 + \frac{1}{2}O_2 \rightleftharpoons H_2O$; $K_3$ The equilibrium constant for the oxidation of $NH_3$ by oxygen to give NO is:
The following pair constitutes a buffer is:
Which composition will make the basic buffer?
The conjugate bases of Bronsted acids $H_2O$ and $HF$ are respectively:
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:
Amongst the given options, which of the following molecules/ions acts as a Lewis acid?
Which combination of the following substances will result in the formation of an acidic buffer when mixed?
For the reaction $2\text{A} \rightleftharpoons \text{B} + \text{C}$; $K_c = 4 \times 10^{-3}$. At a given time, the composition of the reaction mixture is: $[\text{A}] = [\text{B}] = [\text{C}] = 2 \times 10^{-3}\text{ M}$. In light of the above facts, which of the following is correct?
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 $\text{-OH}$ group of an alcohol or the carboxylic acid can be replaced by $\text{-Cl}$ using:
Which of the following compounds undergoes nucleophilic substitution reaction most easily?
Chloropicrin is obtained by the reaction of:
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
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]
Given below is a reaction sequence: $\text{CH}_3\text{CH}_2\text{Cl} \xrightarrow{\text{NaCN}} X \xrightarrow{\text{H}_2/\text{Ni}} Y \xrightarrow{\text{Acetic Anhydride}} Z$ The product '$Z$' in the above reaction is:
The reaction of $\text{C}_6\text{H}_5\text{CH=CHCH}_3$ with $\text{HBr}$ produces:
How many ATP and NADPH2 are required for the synthesis of one molecule of glucose during Calvin cycle?