Mix Test - 9...

The disintegration constant of radium with half-life of 1600 years is

Which of the following compounds is used in the preparation of nylon-66?

Which of the following statements is not correct?

In Williamson's synthesis, ethoxyethane is prepared by

For synthesis of 1-butene, CH₃MgI should be treated with

The density of a gas at 27°C and 1 atm pressure is . If the pressure remains constant, then the temperature at which the density is 0.5 is

An ideal gas undergoes expansion as shown in the following diagram:



Which of the following relations is correct?

for a forward reaction in the process A + B ⇌ C is -ve.

What is the sign of in case of a backward reaction?

For the reaction: H₂(g) + I₂(g) ⇌ 2HI(g), the equilibrium constants expressed in terms of concentration K_c and partial pressure K_p are related as

What is the role of Cr₂O₃ and Fe₂O₃ in Bosch's process?

Photochemical smog consists of an excessive amount of X in addition to aldehydes, ketones, PAN, etc. The compound 'X' is

Which of the following sets represents ferromagnetic elements?

For a reaction A E, the products follow a linear plot of 1/[A]_t versus t. The reaction follows

If = 30 kJ/mol and = 75 J/K mol, then the temperature of vapours at 1 atm pressure is

One gram of a mixture of Fe₃O₄ and Fe₂O₃ is treated with H₂ when the following reaction occurs:

3Fe₂O₃ + H₂ 2 Fe₃O₄ + H₂O

The sample weighs 0.97 g after the above reaction is completed. The percentage of Fe₂O₃ in the mixture is about