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.Management Sciences
Category: Chemistry Mcqs
Crystallization does not involve_______________?
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A. heating
B. sublimation
C. cooling
D. vaporization
The balanced chemical equation for the reaction which occurs when Be is added to water is____________?
A. Be+2H2O?Be (OH)2+H2
B. Be+H2O?Be (OH)2+H2
C. Be+H2O?[Be (OH)4]+2+H2
D. no reaction
Identify the correct statement regarding CO_______________?
A. it combines with H2O to form carbonic acid
B. it reacts with red blood cells of haemoglobin
C. it is powerful oxidizing agent
D. it is used to prepare aerated drinks
Vinylacetylene combines with HCI to form___________________?
A. polyacetylene
B. benzene
C. chloroprene
D. divinyl acetylene
The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?
A. vaporization
B. evaporation
C. crystallization
D. sublimation
A great variety of the organic compounds is due to its property of carbon_________________?
A. Show tetravalency
B. Exhibit catenation
C. Show isomerism
D. Can form multiple bonds
For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?
A. N2+3H2 2NH3
B. H2+I2 2HI
C. 2NO2 N2H4
D. PCI5 PCI3+CI2
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