Ecat chemistry past papers chapter wise - MDCATustad

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

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Sunday, June 14, 2020

Ecat chemistry past papers chapter wise

ECAT Chemistry Past Papers MCQs

A  collection of ECAT Chemistry Past Papers MCQs in chapter wise sequence for online preparation.

Online Preparation of ECAT Chemistry

we have collected most important mcqs from past papers of ECAT Chemistry for the students for online preparation of ecat examination.
1.         Optimum temp for fermentation is
            a          15-20Co          b          20-25 Co        
            c          25-30 Co         d          None
2.         Rectified spirite contain alcohol
            a          12%     b          16%    
            c          95%     d          100%
3.         Best reagent for oxidation of alcohol is
            a          Basic chromatic          b          Basic dichromatic
            c          Acid chromatic           d          None
4.         Colour of lodoform ppt is
            a          Yellow b          Red
            c          Brown d          Brick red
5.         In E1 mechanism product formed is
            a          Alcohol           b          Alkane
            c          Alkene            d          Ether
6.         In ethyl acetate formation which bond of alcohol is broken
            a          C-O     b          C-C
            c          O-H     d          C-H
7.         2,4,6 trinitrophenol is __________ product of phenol
            a          Additive          b          Substituted
            c          Eliminated      d          Oxidative
8.         Which class of compound resemble with structure of water
            a          Phenol             b          Alcohol
            c          Ether   d          All
9.         Which one is more acidic
            a          H2O    b          C6H5-OH
            c          C2H5OH         d          CH3COOH
10.       In distillation of alcohol function of calcium oxide 
            a          Increase distillation    b          Decrease distillation
            c          Absorbmoistune          d          Increase yield
11.       Alcohol obtained fermentation is only
            a          14%     b          95%
            c          16%     d          12%
12.       Reaction of ethanol with acetic acid give
            a          Ethyl acetate   b          Acetone
            c          Ethyl methylester       d          Both a, c
13.       At high temperature dehydration of Alcohol produce
            a          Alkene b          Alkyne
            c          Ether   d          Ketone
14.       Reaction of alcohol with PCl5 produce acid is
            a          HCl     b          H3PO4
            c          H3PO3 d          HNO3
15.       Which alcohol has resistance against oxidation
            a          2methyl-2propanol     b          2-Propanol
            c          1-Propanol      d          Ethanol
16.       In Ethoxide formation of Na which gas is produced
            a          Chlorine          b          Ammonia
            c          Hydrogen        d          Oxygen
17.       Oxidation of 2-Propanol produce
            a          Acetone           b          Alkene
            c          Aldehyde        d          Ether
18.       Which of the following is not alcohol
            a          C6H5OH         b          C3H7OH
            c          C4H9OH         d          CH3-CH3-OH
19.       Formula of carbolic acid is
            a          C2H6O2          b          C2H4O2
            c          C6H5OH         d          CH3COOCH3
20.       Ethyl acetate is produced by reaction of ethanol with
            a          C3H6O2          b          C2H4O2
            c          CH3-CH2-CH2-OH    d          All
21.       Which species has more attack on phenol
            a          Electrophile    b          Nucleophile
            c          Substrate         d          -OH group
22.       Which me has resonance stabilized conjugate base
            a          Ketone            b          Alcohol
            c          Water  d          Phenol
23.       Rectified spirite contain alcohol about
            a          100%   b          95%
            c          90%     d          85%
24.       In fermentation of glucose side product is 
            a          Oxygen           b          Cao
            c          CO2     d          H2O
25.       Which of following is derivative of Alkanes
            a          Phenol b          Water
            c          Ether   d          Alcohol
26.       In formaldehyde carbon is ___________ hybridized?
            a          SP3      b          SP2
            c          SP        d          None
27.       Which catalyst is used in Etherification of alcohol
            a          K2Cr207/conc.H2SO4 b          Conc.H2SO4
            c          Conc.H2SO4/140oC   d          Conc.H2SO4/180oC
28.       Which shows more hydrogen bonding?
            a          Water               b          Alcohol
            c          Alkane            d          All same
29.       Which species cannot show dolocalization of pi-electron?
            a          Water               b          Alcohol

            c          Alkanes           d          All
      

Download all ECAT Past papers chapter wise from the following link.

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