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.Management Sciences
Category: Chemistry Mcqs
Which one of the following halogens is present in Teflon________________?
0
A. I2
B. Br2
C. Cl2
D. F2
Anything which increases rate of reaction without being involved in the reaction________________?
A. Promoter
B. Catalyst
C. Inhibitor
D. All of the above
All the elements in group VIA are ___________________ in nature?
A. hygroscopic
B. metals
C. polymeric
D. all of above
The highest temperature at which a substance can exist as a liquid is called its______________?
A. Critical temperature
B. Standard temperature
C. Absolute temperature
D. Upper consulate temperature
Which of the following is not a use of acetaldehyde ?
A. formation of phenolic resins
B. formation of mirror
C. antiseptic inhalant
D. formation of throat lozenges
Phenanthrene is a fused polycyclic compound contains __________ benzene rings ?
A. Two
B. Three
C. Four
D. Five
The carbon atom of carbonyl group is__________________?
A. sp hybridized
B. sp2 hybridized
C. cp3 hybridized
D. dsp2 hybridized
A technique of partition chromatography in which the solvent is in a pool at the bottom of container_______________?
A. Adsorption chromatography
B. Ascending chromatography
C. Radial chromatography
D. Descending chromatography
The volume occupied by 2.8 g of N2 at STP______________________?
A. 2.24 dm3
B. 22.4 dm3
C. 1.12 dm3
D. 112 dm3
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