Chemistry-
General
Easy
Question
Identify the final product (Z) in the following sequence of reactions.
The correct answer is:
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Chemistry-
The alcohol C4H9OH when shaken with a mixture of anhydrous ZnCl2 and conc. HCl gave an immediate oil layer product. The alcohol is
The alcohol C4H9OH when shaken with a mixture of anhydrous ZnCl2 and conc. HCl gave an immediate oil layer product. The alcohol is
Chemistry-General
Chemistry-
A cylinder with a movable piston is filled at 25°C with a gas that occupies 30.5 cm3. If the maximum capacity of the cylinder is 45.8 cm3, what is the highest temperature to which the cylinder can be heated at constant pressure without having the piston come out?
A cylinder with a movable piston is filled at 25°C with a gas that occupies 30.5 cm3. If the maximum capacity of the cylinder is 45.8 cm3, what is the highest temperature to which the cylinder can be heated at constant pressure without having the piston come out?
Chemistry-General
Chemistry-
The rate of formation of SO3 according to the reaction 2SO2 + O2 →2SO3 is
1.6 ´ 10–3 kg min–1. Hence the rate at which SO2 reacts is
The rate of formation of SO3 according to the reaction 2SO2 + O2 →2SO3 is
1.6 ´ 10–3 kg min–1. Hence the rate at which SO2 reacts is
Chemistry-General
Chemistry-
For the reaction NO2 + CO ¾→ CO2 + NO the experimental rate expression is the number of molecules of CO involves in the slowest step will be :
For the reaction NO2 + CO ¾→ CO2 + NO the experimental rate expression is the number of molecules of CO involves in the slowest step will be :
Chemistry-General
Chemistry-
The ionisation energy in the ground state of hydrogen atom is 13.6 eV. The energy of an electron in 3rd stationary state would be
The ionisation energy in the ground state of hydrogen atom is 13.6 eV. The energy of an electron in 3rd stationary state would be
Chemistry-General
Chemistry-
For P(s) 
2Q(g) + R (g), if KP= 108 atm3.Then equilibrium pressure of mixture is
For P(s) 2Q(g) + R (g), if KP= 108 atm3.Then equilibrium pressure of mixture is
Chemistry-General
Chemistry-
Given that 
= 0.80V and 
= – 0.76V, which of the following is correct?
Given that = 0.80V and = – 0.76V, which of the following is correct?
Chemistry-General
Chemistry-
An aqueous solution contains 5% and 10% of urea and glucose respectively (by weight). If Kf for water is 1.86, the freezing point of the solution is
An aqueous solution contains 5% and 10% of urea and glucose respectively (by weight). If Kf for water is 1.86, the freezing point of the solution is
Chemistry-General
Chemistry-
Given the data below, what approximately is DH for the reaction:
H2(g) + 
(g).Average Bond energies
H—H—436 kJ/mole
Cl—Cl—242 kJ/mole
H—Cl—432 kJ/mole
Given the data below, what approximately is DH for the reaction:
H2(g) + (g).Average Bond energies
H—H—436 kJ/mole
Cl—Cl—242 kJ/mole
H—Cl—432 kJ/mole
Chemistry-General
Chemistry-
The sign of DH for the reaction X2(g) ¾¾→ 2X(g), where X is an atom is -
The sign of DH for the reaction X2(g) ¾¾→ 2X(g), where X is an atom is -
Chemistry-General
Chemistry-
How much sodium acetate should be added to 0.1M solution of CH3COOH to give a solution of pH 5.5 (pKa of CH3COOH = 4.5)
How much sodium acetate should be added to 0.1M solution of CH3COOH to give a solution of pH 5.5 (pKa of CH3COOH = 4.5)
Chemistry-General
Chemistry-
For a sparingly soluble salt ApBq, the relationship of its solubility product (Ls) with its solubility (s) is
For a sparingly soluble salt ApBq, the relationship of its solubility product (Ls) with its solubility (s) is
Chemistry-General
Chemistry-
5.40 gm of an unknown gas at 27°C occupies the same volume as 0.14 gm of hydrogen at 17°C and same pressure. The molecular weight of unknown gas is
5.40 gm of an unknown gas at 27°C occupies the same volume as 0.14 gm of hydrogen at 17°C and same pressure. The molecular weight of unknown gas is
Chemistry-General
Chemistry-
Under same condition of temp. and pressure, a cycloalkene was found to diffuse 3
times slower than hydrogen. Cycloalkene is
Under same condition of temp. and pressure, a cycloalkene was found to diffuse 3 times slower than hydrogen. Cycloalkene is
Chemistry-General
Chemistry-
1 mole of N2O4 (g) at 300 K is kept in dosed container under 1 atm. It is heated to 600K when 20% mass of N2O4(g) decomposes to NO2(g). The resultant pressure is
1 mole of N2O4 (g) at 300 K is kept in dosed container under 1 atm. It is heated to 600K when 20% mass of N2O4(g) decomposes to NO2(g). The resultant pressure is
Chemistry-General
