The number of moles of CO2 which contains 16 g of oxygen is__________________?
The number of moles of CO2 which contains 16 g of oxygen is__________________?
A. 0.25
B. 0.5
C. 0.75
D. 1
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Noble gases are so called zero group because they have:_________?
Noble gases are so called zero group because they have:_________?A. Zero Valency
B. Zero Electronegativity
C. Zero Electron Affinity
D. Both A and B
E. All of these
Shaking two immiscible liquids increases_________________?
Shaking two immiscible liquids increases_________________?A. Length of contact
B. Volume of contact
C. Area of contact
D. all of aboveWhich element has same isotopes like palladium___________________?
Which element has same isotopes like palladium___________________?A. Nickel
B. Calcium
C. Cadmium
D. TinWhich one of the following pairs shown diagonal relationship in the periodic table ?
Which one of the following pairs shown diagonal relationship in the periodic table ?A. Sodium and Lithium
B. Lithium and magnesium
C. Lithium and beryllium
D. Boron and BerylliumThe amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?
The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?A. 0.065gm
B. 0.65gm
C. 6.5gm
D. 7.5gmThe criteria for aromaticity is presence of_________?
The criteria for aromaticity is presence of_________?A. Unsaturations
B. Cyclic structure
C. Presence of 4nπ electrons
D. Presence of 4n+2π electrons