The order of appearance of the following with increasing temperature during the refining of crude oil is:
Fast neutrons can easily be slowed down by:
For a spontaneous change in a system at constant temperature and pressure, which of the following statements is true?
Phenyl magnesium bromide reacts with methanol to give:
Which among the following element is an essential constituent of acids?
Which one of the following statements is not true about the effect of an increase in temperature on the distribution of molecular speeds in a gas?
Which of the following statements is always true for a system at equilibrium under conditions of constant temperature and pressure?
The ore which is found in abundance in India is:
Faraday's Law is associated with:
Which of the following statements is always true for a liquid mixture of two components A and B in equilibrium with a mixture of their vapours?
What is the most common isotope of hydrogen?
A pressure vessel contains a gaseous mixture made up of 2.34 kg silane, SiH4, and 55.4 kg argon. Determine the mole fraction of silane.
The metal that is used as a catalyst in the hydrogenation of oils is:
Which among the following is the most abundant organic compound in nature?
Equimolar solutions in the same solvent have
The molecular formula of phosphorous is:
Which one is an organic Acid ?
If α is the degree of dissociation of Na2SO4, the vant Hoff’s factor (i) used for calculating the molecular mass is:
How many nearest neighbours are there for an atom in a hexagonal close-packed crystal structure?
A catalyst is a substance which:
What is the role of ultraviolet (UV) radiation in the water purification system?
(1) It inactivates / kills the harmful micro- organisms in water.
(2) It removes all the undesirable odours from the water.
(3) It quickens the sedimentation of solid particles and improves the clarity of water.
Which of the statements given above is/are correct?
What is the degeneracy of the energy level with n = 6 in a hydrogenic atom or ion?
In the hooch tragedy (casualty occurring due to the wine poisoning) sometimes the incidents of blindness occurs due to the poisonous substance:
Which among the following happens in an oxidation reaction ?
Highest percentage of nitrogen is found in which among the following fertilizers among the given options?
A nuclear magnetic resonance transition is shifted from the reference in a 400 MHz NMR spectrometer by 529 Hz. Calculate the chemical shift.
On a pressure-temperature phase diagram, the conditions under which a one-component system exists as two phases in equilibrium corresponds to:
Group 0 elements are ____________.
Due to rusting the weight of iron: