An atom loses or gains electrons to__________________?
A. Gain stability
B. Form a bond
C. Complete its outermost shell
D. all are accurate justifications
Submitted by :- Jamil Ahmed
CHEMISTRY
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Which of the following have their outer most shell complete in atomic form ?
A. Noble gases
B. Alkali metals
C. Coinage metals
D. Gun metals
Submitted by :- Jamil Ahmed
Which one shows high %age of the ionic character ?
A. H2O
B. HF
C. HCI
D. HBr
Submitted by :- Jamil Ahmed
Which of the following is not considered as an intermolecular force between molecules ?
A. Coordinate covalent bonds
B. Hydrogen bonds
C. Debye forces
D. London dispersion forces
Submitted by :- Jamil Ahmed
What is the relative rate of effusion of CO and CO2 ?
A. CO is 1.25 times faster than CO2
B. CO is 3.75 times faster than CO2
C. CO is 1.25 times faster than CO
D. Both diffuse at the same rate
Submitted by :- Jamil Ahmed
In sp3 hybridization ________________?
A. All p-orbitals are involved
B. One s and 3 p-orbitals are involved
C. one p-orbital is involved
D. four p-orbitals are involved
Submitted by :- Mansoor Khan
Product of charge and distance is called__________________?
A. Pressure
B. Bond length
C. Work
D. Dipole moment
Submitted by :- Jamil Ahmed
Unpaired electron in a molecule gives ______________ character?
A. Ferromagnetic
B. Paramagnetic
C. Diamagnetism
D. Both A & B
Submitted by :- Jamil Ahmed
According to VESPR Model the geometry of molecule having 5 bond pair in outer most shell will be __________________?
A. Triangular
B. Square planner
C. Trigonal bipyramidal
D. Octahedral
Submitted by :- Jamil Ahmed
Geometry of molecule will be pyramidal if the outer Most shell of the central atom has___________________?
A. 3 bond pair one lone pair
B. 2 bond pair 2 lone pair
C. 1 bond pair 3 lone pair
D. 3 lone pair 1 bond pair
Submitted by :- Jamil Ahmed