Which one does not exhibit aldol condensation___________________?
A. Ethanal
B. Acetone
C. Benzaldehyde
D. Butanone
Submitted by :- Jamil Ahmed
CHEMISTRY
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The process of fermentation involves all the enzymes except__________________?
A. Diastase
B. Invertase
C. Zymase
D. Sucrase
Submitted by :- Jamil Ahmed
Which one of the following is not a good leaving group ?
A. HSO4-
B. Cl-
C. OH-
D. Br-
Submitted by :- Jamil Ahmed
When toluene reacts with chlorine in sunlight the first major product is__________________?
A. Benzyl chloride
B. Benzal dichloride
C. O-chlorotoluene
D. O-chlorotoluene and P-chlorotoluene
Submitted by :- Jamil Ahmed
Vinyl acetylene combines with hydrochloric acid produces___________________?
A. Diviny1 acetylene
B. Ethylidene dichloride
C. Chloroprene
D. 1 – 3 – 3 – trichloro butane
Submitted by :- Jamil Ahmed
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
Submitted by :- Jamil Ahmed
In the complex [Cr(OH)3(H2O)3] the coordination number is __________________?
A. 2
B. 3
C. 4
D. 6
Submitted by :- Jamil Ahmed
When chlorine is passed through hot solution of caustic soda the reaction is said as___________________?
A. Displacement
B. Reduction
C. Disproportionation reaction
D. Double displacement reaction
Submitted by :- Jamil Ahmed
Chemical composition of cinnabar is____________________?
A. FeS2
B. HgS
C. PbS
D. ZnS
Submitted by :- Jamil Ahmed
Compounds having same molecular formula but differ in structural formula are called __________________?
A. polymer
B. monomer
C. isomer
D. allotropes
Submitted by :- Jamil Ahmed