Top Biochemistry Interview Questions Part – 3
What Is The Structure Of Cscl And Give The Co-ordination Number Of Cscl?
The structure of cscl is Body Centered Cubic and the Co-ordination number of CsCl is 8.
Ionic Compound Does Not Show The Property Of Space Isomerism, Give The Reason?
Ionic bond is Electrostatic. It is non directional, so Ionic compounds does not show the property of Space Isomerism.
In Double Bond, How Many Sigma And Pi Bonds Are Present In It?
Double bond = 1 Sigma bond and one Pi bond Among sigma and Pi bonds which is the stronger one Sigma bond is Stronger than pi bond
Define Polar Covalent Bond
The covalent bond formed by the unequal sharing of electrons between the two atoms is called polar covalent bond.
What Is Dipole?
In polar covalent molecule, one atom gets positive charge and the other one gets negative charge hence called dipole.
Covalent Bond Is Directional Therefore Which Covalent Property Is Shown?
Space Isomerism
Which Theory Explains The Paramagnetic Nature Of Oxygen?who Proposed It?
Molecular orbital theory, proposed by Hunds and Mulliken
Define Co-ordination Covalent Bond.
Coordination covalent bond is formed by the mutual sharing of pair of electrons between two atoms contributed by only one of the combining atoms.
What Does One Debye Equals?
1018 e.s.u – Cm
Which Property Among The Following Generally Decreases From Top To Bottom In A Group 1a?
Electropositive, Density,Basic nature, classical reactivity Electro affinity, electro negativity, Ionisational potential,melting and boiling points decreases from top to bottom in a group 1A from lithium to caesium.
Which Property Among The Following Generally Increases From Top To Bottom In A Group 1a?
Electropositive, Density,Basic nature, classical reactivity Electropositive, Density, Basic nature, classical reactivity, and solubility generally increase from top to bottom from lithium to caesium.
Which Element In 1a Group Does Not Form Peroxides?
Lithium
Which Metal Is More Metallic In Nature Among 1a Group Elements?
Francium.
Define Bond Energy.
The amount of energy released when one mole of bonds are formed between the corresponding gaseous atoms is called Bond energy.
Define The Phenomenon Resonance.
When a molecule is represented by two or more nearly equal structures, which differ in the arrangement of electrons, then the molecule is said to exhibit resonance.
Which Group Of Elements Is Called Alkaline Earth Metals?
1st A group because the oxides and hydrides are alkaline in nature Among 1A group elements why the element lithium is the most powerful, reducing agent in equivalent state Due to its low sublimation and hydration energy.
Define Bond Angle.
The angle between the lines joining the nuclei of the bonded atom with a central atom is called bond angle.
What Is The Order Of Ch Bond Length In C2h6 And C2h4 And C2h2?
c2h6>c2h4 >c2h2
What Are The Units Of Bond Length?
The intermolecular distance between the bonded atoms in a molecule is called bond length and the units are Angstrom units (A0).
Who Proposed Vsepr Theory? What Does It Explain?
VSEPR theory was proposed by Sedgwick and Powell. It explains the shapes of polyatomic molecules.
In Water Molecule The Bond Angle Decreases From 109.28 To 104.5, Why This Does Happens?
The repulsion between lone pair and lone pair electrons In NH3 molecule, the bond angle decreases from 109.28 to 107.3 why does it happen.The more repulsion between lone pair and bond pair.
Define Hybridization.
The distribution of electrons into Hybrid orbitals is as per the Paulis Exclusion principle and the Hunds rule of Maximum Multiplicity.
Which Element In 1a Group Is Lighter Than Water?
Lithium, Sodium, and potassium
What Are The Raw Materials Used For The Precipitation Of Na2co3 By Solvay Ammonium Process?
Sodium Chloride, limestone and ammonia.
Give The Chemical Formula For Borax.
(Na2) B4 (O7) .10(H2) O
Give The Formula For Peral Ash.
The formula for Peral Ash is K2CO3.