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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Alpha (α) particles are helium (He) nucleus with a charge of __________ ?
Alpha (α) particles are helium (He) nucleus with a charge of __________ ?A. e
B. 2e
C. 3e
D. 4eThe phenomenon in which a compound exists in two or more crystalline forms is called ________________?
The phenomenon in which a compound exists in two or more crystalline forms is called ________________?A. Isomorphism
B. Polymorphism
C. Anisotropy
D. AllotropyAll the transition elements show_________________?
All the transition elements show_________________?A. Similar physical properties
B. Similar chemical properties
C. Both A and b
D. NoneIndustrial materials and thermal power stations are coated with______________________?
Industrial materials and thermal power stations are coated with______________________?A. Polyester resins
B. Epoxy paints
C. Polyamide resins
D. Polyvinyl chlorideMolecular orbital which have higher energy than atomic orbitals is called___________________?
Molecular orbital which have higher energy than atomic orbitals is called___________________?A. Bonding molecular orbital
B. Antibonding molecular orbital
C. Hybrid orbital
D. Super atomic orbitalAbsolute alcohol is obtained when rectified spirit is treated with__________________?
Absolute alcohol is obtained when rectified spirit is treated with__________________?A. Ca(OH)2
B. CaCO3
C. CaCl2
D. CaO