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.Management Sciences
Category: Chemistry Mcqs
Which of the following is not a use of acetaldehyde ?
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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
The half cells are interconnected through________________?
A. wire
B. salt bridge
C. electric circuit
D. no connection exists
Rate of enzymatic reaction is directly proportional to the concentration of___________________?
A. Enzyme
B. Substrate
C. Enzyme and substrate
D. Enzyme and product
Boron in soil has been considered micronutrient for_________________?
A. Soil porocity
B. Proper growth of plants
C. Alkalinity of soil
D. All
Which one of the following does not show hydrogen bonding?
A. Water
B. Ethyl alcohol
C. Phenol
D. Diethyl ether
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