List of practice Questions

Observe the following reactions
Which are common for both Y and W? I. Four P-OH bonds II. Two P-H bonds III. Two \(P=O\) bonds IV. One P-O-P bond
What are X and Y in the following reactions? \[ 2X_2(g)+2H_2O(l)\rightarrow4H^+(aq)+4X^-(aq)+O_2(g) \] \[ Y_2(g)+H_2O(l)\rightarrow HY(aq)+HOY(aq) \]
Match the following orders with their properties.
Which of the following exhibit optical isomerism? I. \([Fe(C_2O_4)_3]^{3-}\) II. \([Cr(H_2O)_4Cl_2]^+\) III. \([Co(NH_3)_2(en)_2]^{3+}\)
Natural rubber is the addition polymer of monomer X and neoprene is the addition polymer of monomer Y. What are X and Y respectively?
A water sample is contaminated with compound X (molar mass \(=120g~mol^{-1}\)). Its molality is \(10^{-4}m\). What is its concentration in ppm?
The following reaction takes place in a galvanic cell \[ 2Cr(s)+3Cd^{2+}(aq)\rightarrow2Cr^{3+}(aq)+3Cd(s) \] What is \(\Delta_rG^\circ\) of this cell? Given: \[ F=96500~Cmol^{-1} \] \[ E_{Cd^{2+}/Cd}^{\circ}=-0.4V \] \[ E_{Cr^{3+}/Cr}^{\circ}=-0.74V \]
Given below are two statements Statement-I: Rate of first order reaction decreases with time Statement-II: Rate of zero order reaction decreases with time
Gold number of a protective colloid A is x. A mixture is prepared by adding 50 mL of 10% NaCl solution to 500 mL gold sol. What minimum mass of A is needed to prevent coagulation?
The metal refined by Mond process is X and the metal refined by Van Arkel method is Y. What are X and Y respectively?
Match the extra element present in the organic compound with reagent used for its detection.
Which of the following are Position isomers?
Observe the reaction set and identify A and D.
Observe the reaction sequence
Compound A forms sodium derivative with \(NaNH_2\). Find B and D.
Identify the edge lengths \((a,b,c)\) in the unit cell shown below.
Which of the following represents the water-gas shift reaction?
Which of the following is not the correct statement about group 1 elements?
Which of the following statements are correct? I. Liquid sodium metal is used as coolant in fast breeder nuclear reactor II. LiCl is deliquescent III. LiF and CsI have low solubility in water
The correct order of metallic radius of Al, Ga, In, Tl is
Given below are two statements Statement-I: Silicones have high thermal stability and high dielectric strength Statement-II: In silica Si-O bond enthalpy is very high
In winter, polar stratospheric clouds formed over Antarctica provide surface on which compound X responsible for depletion of ozone is formed. What is X?
The $\Delta_f\text{H}^\ominus$ of $\text{BaCO}_3\text{(s)}$, $\text{BaO(s)}$ and $\text{CO}_2\text{(g)}$ is respectively $-1216.3$, $-553.5$ and $-393.5\text{ kJ mol}^{-1}$. What is the value of $x$ (in $\text{kJ mol}^{-1}$) in the following reaction?} \[ \text{BaCO}_3\text{(s)} \xrightarrow{\Delta} \text{BaO(s)}+\text{CO}_2\text{(g)}-x \]
The $\Delta_f\text{H}^\ominus$ of $\text{BaCO}_3\text{(s)}$, $\text{BaO(s)}$ and $\text{CO}_2\text{(g)}$ is respectively $-1216.3$, $-553.5$ and $-393.5\text{ kJ mol}^{-1}$. What is the value of $x$ (in $\text{kJ mol}^{-1}$) in the following reaction?} \[ \text{BaCO}_3\text{(s)} \xrightarrow{\Delta} \text{BaO(s)}+\text{CO}_2\text{(g)}-x \]
The following equilibrium is established at 1100 K in a closed V L flask: \[ C(s)+CO_{2}(g)\rightleftharpoons2CO(g) \] The pressure of equilibrium mixture is 1 atm. Among the gaseous compounds, CO has 84% by mass. $K_c$ of this reaction is (approximately) ($R=0.082~L~atm~mol^{-1}K^{-1}$). Assume that CO and $CO_2$ are ideal gases.
The element with atomic number 114 has outer shell electron configuration as that of element 'X'. What is X?