Unit of Kc is_______________?
Unit of Kc is_______________?
A. moles2dm+6
B. moles-2dm+6
C. moles+2dm-6
D. Kc may or may not have units
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Sommerfelds modification in Bohrs model is_______________?
Sommerfelds modification in Bohrs model is_______________?A. Orbit is cylindrical
B. Orbit is elliptical
C. Orbit is longitudinal
D. Orbit is asymmetricalThe soul of chemistry is dealing with___________?
The soul of chemistry is dealing with___________?
A. Internal structural changes in matter
B. Composition of matter
C. Properties of matter
D. Composition and properties of matterOne mole of CO2 contains?
One mole of CO2 contains?A. 6.022 x 1023 atoms of oxygen
B. 22-gram electrons
C. 6.022 x 1023 atms of carbon
D. both B. & C.When Ammonia is used as a refrigerant in vapour compression cycle?
When Ammonia is used as a refrigerant in vapour compression cycle?A. Cu Tubing used
B. Steel tubes used
C. Both a & b
D. Material does not effect by refrigerantRadiations are harmful as it:___________?
Radiations are harmful as it:___________?A. Causes skin cancer
B. Causes anemia
C. Alters body tissue
D. is unstableHigher value of electron affinity means__________________?
Higher value of electron affinity means__________________?A. Atom will lose electron easily
B. Atom will gain electron easily
C. Atom may form di-positive ion
D. The reason is unknown