Chemistry

The gas molecules have r.m.s. velocity of its molecules as 1000 m/s

The gas molecules have r.m.s. velocity of its molecules as 1000 m/s. What is its average velocity Options (a) 546…

The smell of agarbati, mixed in the atmosphere , is due to

The smell of agarbati, mixed in the atmosphere , is due to Options (a) evaporation (b) diffusion (c) osmosis (d)…

A liquid is in equilibrium with its vapour at its boiling point

A liquid is in equilibrium with its vapour at its boiling point.The molecules in the two phases have equal Options…

At 27⁰C average kinetic energy of one mole of helium gas can be given

At 27⁰C average kinetic energy of one mole of helium gas can be given Options (a) 3741.30 J mol⁻¹ (b)…

A gas has a vapour density 11.2.The volume occupied by 1 g of gas at NTP is

A gas has a vapour density 11.2.The volume occupied by 1 g of gas at NTP is Options (a) 1…

Kinetic energy of one mole of an ideal gas at 300 K is

Kinetic energy of one mole of an ideal gas at 300 K is Options (a) 3.48 kJ (b) 3.74 kJ…

Ortho and para-hydrogen have

Ortho and para-hydrogen have Options (a) identical chemical but different physical properties (b) identical physical and chemical properties (c) identical…

Electronic configuration of hydride ion is

Electronic configuration of hydride ion is Options (a) 1s¹ (b) 1s² (c) s¹⁺¹ (d) s²⁺ Correct Answer: 1s² Explanation: Hydrogen…

On reaction with Mg, very dilute nitric acid produces

On reaction with Mg, very dilute nitric acid produces Options (a) nitric acid (b) hydrogen (c) NH₃ (d) nitrous oxide…

Water has high boiling point because

Water has high boiling point because Options (a) it is weak acid (b) it is associate with hydrogen bonding (c)…