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.Management Sciences
Category: Chemistry Mcqs
CO2 is gas while SiO2 is solid at room temperature?
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A. carbon is non-metal while silicon is semi-metal
B. CO2 is an independent molecule while SiO2 has network covalent structure
C. CO2 forms multiple bond while silicon does not form multiple bonds
D. Silicon has all sigma bonds
A single atom or group of atoms which gives characteristic properties to a compound is called_________________?
A. radical
B. hydrocarbon
C. functional group
D. ion
E0red of an element cab be calculated by comparing it with _____________________?
A. New electrode of same element
B. SHE
C. 1M solution of ions of respective element
D. 2M solution of HCI
Which of the halogen can displace other three elements ?
A. Flourine
B. Chlorine
C. Iodine
D. Bromine
In pig iron the concentration of C-atom is ___________________?
A. 0.12 — 0.25%
B. 2.5 — 4.5%
C. 2.0 — 4.0%
D. 0.25 — 2.5%
The unit of the rate constant (k) is same as that of rate of reaction________________?
A. First order reaction
B. Second order reaction
C. Zero order reaction
D. Third order reaction
Organic compounds are soluble in ____________________?
A. polar solvent
B. non-polar solvent
C. alkalies
D. water
Which one is not the partial pressure of oxygen in the lungs ?
A. 0.1526 atm
B. 116 mm of Hg
C. 116 torr
D. 1 atm
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