The geometry of ammonia is___________________?
A. Tetrahedral
B. Square planner
C. Trigonal bipyramidal
D. Trigonal Pyramidal
Chemical Bonding
The Lewis acids are__________________?
The Lewis acids are__________________?
A. Electron deficient
B. Electron rich
C. Octet is complete
D. No such acids exist
Mostly ionic compound are produced in between elements of_________________?
Mostly ionic compound are produced in between elements of_________________?
A. IA and VIA
B. IA IIA and VIIA
C. IB and VIIB
D. IA and IB
Elements of group IA IIA are _________________?
Elements of group IA IIA are _________________?
A. Electronegative
B. Electropositive
C. Neutral
D. IA is electropositive while IIA is electronegative
Energy released or absorbed when electrons are added in atom is_________________?
Energy released or absorbed when electrons are added in atom is_________________?
A. Ionization potential
B. Electronegativity
C. Electron affinity
D. Activation energy
Greater shielding effect corresponds to ionization energy value___________________?
Greater shielding effect corresponds to ionization energy value___________________?
A. Greater
B. Lesser
C. Remain same
D. No effect
Energy required to remove electron from an atom______________?
Energy required to remove electron from an atom______________?
A. Ionization potential
B. Electronegativity
C. Electron affinity
D. Activation energy
In a period the atomic radius ?
In a period the atomic radius ?
A. Increases
B. Decreases
C. Remain same
D. First decreases then increases
Force responsible to hold atoms together in a compound is called ________________?
Force responsible to hold atoms together in a compound is called ________________?
A. Bond
B. Attractive force
C. Interaction
D. All of above represent same entity
A specie with maximum number of unpaired electrons ?
A specie with maximum number of unpaired electrons ?
A. F
B. H2O
C. HF
D. NH-2