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.Management Sciences
Category: Chemistry Mcqs
Which of the following will decompose to produce litharge_________________?
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A. Pb2O
B. Pb3O4
C. PbO2
D. All of the above
Alkanes are also known as________________?
A. saturated hydrocarbon
B. unsaturated hydrocarbon
C. paraffins
D. both A & C
R-Mg-Br is called___________________?
A. Grignard reagent
B. Metallic alkyl halide
C. Both A & B
D. Alkyl
Which one of the following compounds usually smells like garlic ?
A. P2O3
B. P2O5
C. H3PO3
D. All have same smell
Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________?
A. Displacement reaction
B. Double displacement reaction
C. Disproportionation reaction
D. Reduction reaction
In cyano group the carbon atom shows which kind of hybridization___________________?
A. sp2
B. sp
C. sp3
D. none of the above
When aquious bromine is added to aqueous phenol a creamy white ppt is obtained. What does this reaction show ?
A. phenol is unsaturated
B. 2-bromophenol is insoluble in water
C. a hydroxy group makes the benzene ring more susceptible to electrophilic attack
D. acid-base reaction
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