Chemistry MCQs for Test & Interview Preparation
![Chemistry MCQs for Preparation of MDCAT, Lecturer Chemistry, GAT, SST, CT, PST, DM, PET, JEST, TGT, FPSC, KPPSC, PPSC, SPSC, BPSC, Vice Principal, Headmaster, ASDEO, ADEO, Scientific Assistant.](https://sabaqasaan.com/wp-content/uploads/2022/12/Chemistry-MCQs.jpg)
151. Halogenations of methane in the presence of diffused sunlight occurs?
(a) Quickly, only in one step
(b) In a series of four steps
(b) Slowly, only in one step
(d) Quickly, in two step
152. Dehydrohalogenation of alkyl halide is?
(a) Removal of hydrogen
(b) Removal of halogen
(c) Removal of hydrogen and halogen
(d) Addition of hydrogen and halogen
153. Which one of the following decolorizes Br2 water?
(a) Ethane
(b) Propane
(c) Ethene
(d) Methane
154. Substitution reaction is the characteristic of?
(a) Alkynes
(b) Alkanes
(b) Alkenes
(d) None of these
155. Which one is the least reactive?
(a) Ethyneethenee
(b) Propene
(c) Ethane
156. Which one of the following is a disaccharide?
(a) Glucose
(b) Sucrose
(b) Fructose
(d) Starch
157. A large number of amino acids polymerizes into?
(a) Vitamins
(b) Protein
(b) Carbohydrates
(d) Lipids
158. Glycogen is an example of?
(a) Fats
(b) Carbohydrates
(b) Nucleic acids
(d) Proteins
159. Deficiency of vitamin A causes?
(a) Scurvy
(b) Night blindness
(b) Rickets
(d) Aging
160. What substance is present in every living cell and acts as a hub of information and control?
(a) Protein
(b) DNA
(b) Amino acid
(d) Glucose
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