What is the molecularity of the following elementary reaction?

nh2cl(aq) + oh-(aq) > nhcl-(aq) + h2o(l)

a) unimolecular

b) bimolecular

c) termolecular

d) tetramolecular

e) the reaction order must be known before molecularity can be determined.

Answer : The correct option is, (B) bimolecular

Explanation :

Molecularity : It is defined as the total number of reactant molecules taking part in the balanced equation of a reaction. It is a theoretical concept.

The given balanced chemical reaction is,

The number of reactants molecules taking part in the balanced equation of a reaction are, and .

In this reaction, 1 molecules reacts with the 1 molecule.

Total number of reactant molecule = 1 + 1 = 2

The molecularity of the reaction is 2 that means, the elementary reaction is bimolecular.

Hence, the correct option is, (B) bimolecular

lithosphere and asthenosphere

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.