The gas molecules having highest rms speed is (A) Hydrogen (B) Helium (C) Carbon dioxide (D) Oxygen

The molecule of which gas have highest speed ?

The rms speed of a gas molecule is

Methanogens do not produce (a) Oxygen (b) Methane (c) Hydrogen sulfide (d) Carbon dioxide

Find the temperature at which oxygen molecules would have the same rms speed as of hydrogen molecules at 300 K .

Select a basic gas from the following (i) Ammonia (ii) Sulphur dioxide (iii) Hydrogen chloride (iv) Chlorine (v) Carbon dioxide (vi) Oxygen (vii) Hydrogen . How is the basic nature verified ?

Air consists mainly of nitrogen and oxygen molecules. Relative molecular masses of nitrogen and oxygen are 28 and 32 respectiely. Calculate : (i) the ratio of the rms speed of nitrogen molecules to that of the oxygen molecules in air and (ii) the ratio of the r.m.s. speed of oxygen molecules in air at 0^(@)C to that at 10^(@)C .

Give two uses of the following components present in air : (a) oxygen (b) nitrogen (c ) carbon dioxide (d) water vapour

Which of the following combines with haemoglobin in blood? (a) Carbon dioxide (b) carbon monoxide (c) oxygen (d) methane

The following materials are provided - solutions of cobalt chloride, ammonia, potassium permanganate, lime water, starch-iodide, sodium hydroxide, lead acetate, potassium iodide. Also provided are litmus and filter papers, glowing splinters and glass rods. Using the above how would you distinguish between: a] a neutral, acidic and a basic gas b] oxygen and hydrogen gas. c] carbon dioxide and sulphur dioxide gas d] chlorine and hydrogen chloride gas e) hydrogen sulphide and nitrogen dioxide gas f] ammonia and carbon dioxide gas g] zinc carbonate and potassium nitrate h] hydrated copper sulphate and anhydrous copper sulphate i] ammonium sulphate and sodium sulphate.

Find the rms speed of hydrogen molecules at room temperature ( = 300 K) .