Crystallization does not involve_______________?
Crystallization does not involve_______________?
A. heating
B. sublimation
C. cooling
D. vaporization
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Electric bulb filament is made of__________?
Electric bulb filament is made of__________?A. Copper
B. Aluminum
C. Lead
D. TungstenWhich of the following is most soluble on water?
Which of the following is most soluble on water?A. BaSO4
B. SrSO4
C. CaSO4
D. MgSO4Which one of the following is a buffer solution ?
Which one of the following is a buffer solution ?A. brine
B. blood
C. glue
D. solution of CuSO4Which of the following is the best explanation that CO2 is non polar molecule __________________?
Which of the following is the best explanation that CO2 is non polar molecule __________________?A. Linear geometry
B. Dipole moment is zero
C. Sp hybridization
D. NoneAmmonia may be prepared by heating ammonium chloride with_______________?
Ammonia may be prepared by heating ammonium chloride with_______________?A. Water
B. NaCl
C. Aqueous sodium hydroxide
D. H2SO4Chemical equilibrium state is_______________?
Chemical equilibrium state is_______________?A. dynamic state
B. static state
C. free state
D. unidirectional state