Class 11th

When neopentyl alcohol is heated with an acid, it slowly converted into an 85:15 mixture of alkenes A and B, respectively. What are these alkenes?

Which of the following compounds will form the precipitate with aq. AgNO₃ solution most readily?

If the equilibrium constant for A ⇌ B + C is K⁽¹⁾(eq) and that of B + C ⇌ P is K⁽²⁾(eq), the equilibrium constant for A ⇌ P is:

The process that is NOT endothermic in nature is

On combustion of Li, Na and K in excess of air, the major oxides formed, respectively, are:

Among the following compounds, which one has the shortest C – Cl bond?

An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to

The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is

For one mole of an ideal gas, which of these statements must be true?
(a) U and H each depends only on temperature
(b) Compressibility factor z is not equal to 1
(c) Cp,m – Cv,m = R
(d) dU = CvdT for any process

The change in the magnitude of the volume of an ideal gas when a small additional pressure ΔP is applied at a constant temperature, is the same as the change when the temperature is reduced by a small quantity ΔT at constant pressure. The initial temperature and pressure of the gas were 300 K and 2 atm. respectively. If |ΔT| = C|ΔP| then value of C in (K/atm) is ….