A single chlorine free radical can destroy how many ozone molecules ?
A single chlorine free radical can destroy how many ozone molecules ?
A. 10
B. 100
C. 10000
D. 100000
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Bucky balls is an allotropic from of__________________?
Bucky balls is an allotropic from of__________________?A. Sulphur
B. Carbon
C. Silica
D. TinConcentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called________________?
Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called________________?A. saturated solution
B. solubility
C. unsaturated solution
D. super saturated solutionChromatography is used to separate _________ ?
Chromatography is used to separate _________ ?A. Solution
B. Mixtures
C. Molecules
D. AtomsWhich of the following will be acidic_____________?
Which of the following will be acidic_____________?A. propyne
B. 1-butyne
C. ethyne
D. all of the aboveCoordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is____________________?
Coordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is____________________?A. 2
B. 6
C. 4
D. 8The radio-active element used in heart pacemakers is ___________?
The radio-active element used in heart pacemakers is ___________?A. Uranium
B. Deuterium
C. Plutonium
D. Radium