Total number of atoms, Ions or molecules of the reactants involved in the reaction Is termed as its______.

Which of the following statement true for molecularity of a reaction? It is sum of exponents of the molar concentration of the reactants in the rate equation, It may have a fractional value, It is the number of molecules of the reactants taking part in a single step chemical reaction, It is determined experimentally

Is the total number of atoms of each element in the molecules present in the reactant side and that in the product side equal in this equation ?

In crystalline solid, atoms, ions or molecules are held in an orderly array. But some point defect is observed in a crystal, when a vacancy is created by an atom or ion dislocated from its normal position to an interstitial site. What is the defect called?

The number of electrons involved in the reduction of one nitrate ion to hydrazine is.

The total number of orbitals in L shell of an atom is

The total number of orbitals in M shell of an atom is

The mole concept helps in handling a large number of atoms and molecules in stoichiometric calculations. What is the number of hydrogen atoms in 1 mole of methane( CH_4 )?