Question
Give reason: Hydrogen $(H2)$ molecule is also referred to as dihydrogen.
✓
Answer
The nucleus of a hydrogen atom consists of one positively charged proton i.e., nuclear charge of $+1$ and one extranuclear electron.
As this electron is in direct influence of nuclear attraction, hydrogen has a little tendency to lose this electron.
However, it can easily pair with the other electron forming a covalent bond.
Therefore, it exists in diatomic form as $H_2$ molecule and hence, it is also referred to as dihydrogen.
As this electron is in direct influence of nuclear attraction, hydrogen has a little tendency to lose this electron.
However, it can easily pair with the other electron forming a covalent bond.
Therefore, it exists in diatomic form as $H_2$ molecule and hence, it is also referred to as dihydrogen.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Name the types of intermolecular forces present in Ar, $Cl_2, CCl_4$ and $HNO_3.$
→Consider three compounds: $H _2 S, H _2 Se$ and $H _2 O$. Identify which has the highest boiling point. Justify.
→Deduce the oxidation number of $S$ in the following species:
i. $SO _2$
ii. $SO _4^{2-}$
Calculate surface area to volume ratio of spherical particle. See how the ratio increases with the reduction of radius of the particle. Plot the ratio against the radius.
With the help of diagram answer the questions given below:
a. Which atom should have smaller ionization enthalpy, oxygen or sulfur?
b. The lithium forms +1 ions while berylium forms +2 ions ?
a. Which atom should have smaller ionization enthalpy, oxygen or sulfur?
b. The lithium forms +1 ions while berylium forms +2 ions ?
Give reasons: Potassium superoxide is used in breathing equipment used for mountaineers and in submarines and space.
Mention factors affecting adsorption of gas on solids.
difference between : White phosphorus and Red phosphorus
A. Name the anion produced by this breaking of a covalent bond.
B. Indicate the type of bond breaking in this case.
C. Comment on geometry of the cation formed by such bond cleavage.
B. Indicate the type of bond breaking in this case.
C. Comment on geometry of the cation formed by such bond cleavage.
With the help of graph answer the following –
At constant temperature,
a. Graph shows relation between pressure and volume. Represent the relation mathematically.
b. Identify the law.
c. Write the statement of law.