MDCAT Chemistry Past Papers MCQs Chapter Wise Test No-2 - MDCATustad

A collection of mdcat, ecat, f.sc, ics and matric examination all subjects MCQs and past papers chapter wise.

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Friday, June 19, 2020

MDCAT Chemistry Past Papers MCQs Chapter Wise Test No-2

MDCAT Chemistry Past Papers MCQs Chapter Wise

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MDCAT Chemistry Past Papers MCQs

31.       Can sugar is hydroloysed in presence of _________ enzyme
(a)        Zymase           (c) Invertase
(b)       Diastase          (d) both b, c
32.       In Ethyl alcohol formation effuvescence is due to
(a) formation of C2H5OH (c) Co2
(b) yeast                             (d) all 
33.       Which one is not fermentable sugar
(a)        Cane juice       (c) Molasses
(b)  Fruit juice             (d) none  
34.       Starch is not found in
(a) potato                    (c) rice
(b) maize                     (d) butter
35.       Oxidation of parimary alcohol gives
(a) carboxylic acid      (c) ketone
(b) ether                      (d) none
36.       Which sugar is easily hydrolysed in fermentation __________ process
(a) monasaccharide    (c) Disaccharide
(b) polysaccharide      (d) both b, c
37.       Which one is secondary alcohol
(a) cyclohexnol           (c) 2-Butanol
(b) 1-Pentanol             (d) both a, b
38.       Rectified spirit contain percentage of ethanol
(a) 12%                       (c) 14%
(b) 95%                       (d) 99%
39.       Which species is obtained as residue after crystalinzation of sugar
(a) Baggas                   (c) Molasses
(b) yeast                      (d) sugar cane
40.       Which one is proper condition for fermentation
(a) proper aeration      (c) absence of presentative
(b) Dilute solution      (d) all
41.       When C-O bond is broken which species is reactive in alcohol
(a) primary                  (c) secondary
(b) tertiary                   (d) quartarney 
42.       The functional gp present in ehtyl acetate
(a) ether                      (c) ester
(b) carboxylic             (d) ketone
43.       Which alochol resists oxidation
(a) primary                  (c) secondary
(b) tertiary                   (d) all
44.       When ethanol react with ethyl chloride to form ethyl chloride which catalyst is used
(a) ZnCl2                    (c) Tho2
(b) pyridine                 (d) H+
45.       When ethanol react with PCl5 which acid is produced
(a) HCl                        (c) HNO3
(b) H3PO4                   (d) H3PO3
46.       In phenolate ion which species is delocalized with double bond
(a) negative charge     (c) lone pair of electron
(b) sigma bond             (d) none 
47.       The number of lone pair of electron in phenol are
(a) 1                             (c) 2
(b) 3                            (d) 4
48.       The colour of ppt of 2,4,6-Trinitrophenol
(a) yellow                    (c) white
(b) green                     (d) pink
49.       Number of Pi-bond present in Picric acid
(a) 2                             (c) 3
(b) 4                            (d) 12
50.       Nitric acid can react with
(a) dil.HNO3               (c) Conc.HNO3
(b) both a, b                 (d) none 
51.       Depolymerization can be occured by ___________ process
(a) thermal                 (c) chemical
(b) both a, b               (d) none
52.       A single chloride free radical can destroy many ozone molecules
(a) 100                         (c) 100000
(b) 10000                    (d) 10
53.       Which one is eye irritant
(a) H2O2                     (c) HNO3
(b) PAN                       (d) HOCl
54.       Main chemical species present in straosphere which absorb radiation
(a) ozone                       (c) No2
(b) So2                          (d) All
55.       Temperature of troposphere __________ with increasing altitude
(a) increase                 (c) remain same
(b) decrease                (d) none
56.       pH of unpolluted rain water should be
(a) 7.1                         (c) 5.6
(b) 6                           (d) 6.5
57.       Ozone is allotropic form of                                                                         
(a) Oxygen                  (c) Nitrogen
(b) Sulphur                  (d) Co2
58.       At present how much pesticides are formulated
(a) 10 thousand           (c) 10 lac
(b) Both b, c                (d) One million
59.       Which one is carcinogen class of compounds
(a) Diesel oil   (c) Lubricating oil
(b) Dioxins     (d) Both a, c
60.       Which metal does not have safe limit                                                                                
(a) Chromium      (c) Aluminium
(b) Calcium         (d) Both a, b
#MDCAT Chemistry Past Papers

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