2012-06-07

Medical Entry Test MCQs [Chemistry]

Medical Entry Test MCQs [Chemistry] ch.1

Here is your first test Chemistry Chapter 1 MCQs Test. Keep in touch with our MCQs  Tests released periodically.
1- isotopes are sister atoms of same element with similar chemical properties but different
(a) atomic number
(b)atomic volume
(c)atomic mass
(d)atomic structure

2-cadmium has isotopes
a-3
b-6

c-9
d-12

3-atomic masses of elements were determined by
a-john Dalton
b-Berzelius
c-Avogadro
d-Democritus

4-what is the mass of one mole of Iodine molecule.
a-53
b-74
c-250
d-254

5-in combustion analysis CO2 is absorbed in
a-mg(ClO4)2
b-lime water
c-concentrated H2SO
d-50%KOH

6-the collection of Avogadro no of [articles represent
a-molecule
b-empirical formula
c-formula unit
d-mole

7-CO+ is an example of
a-free radical
b-cationic molecular ion
c-stable molecule
d-anionic molecular ion

8-which of the following has the max num of moles
a-1g of H2O
B-40g of H2O
C-36g of H2O
d- none

9-%of O2 in H2O is
a-80%
b-88.8%
c-70%
d-none

10-the SI unit of measurement of  quantity is
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21 comments:

  1. Muhammad Junaid Ashraf24 May 2012 15:14

    1) C
    2) C
    3) B
    4) D
    5) A
    6) D
    7) D
    8) B
    9) B
    10) C
    11) B
    12) Wrong statement
    13) A & B have Avogadro's no. of molecules where as C has 0.63Avogadro's number of molecules
    14) 0.4 %
    15) A

    ReplyDelete
  2. i m weak in chemistry calculations plz help me

    ReplyDelete
  3. madiha amjad20 July 2013 06:35

    plzzz provide key

    ReplyDelete
  4. find mcq's with answers here
    uentrytest. blogspot. com

    ReplyDelete
  5. NO 12th statement is right and ans is C=1 MOLE
    Reason is that ...one mole of any type of ideal gas occupies the volume of 22.414dm`3 at S.T.P.....less than 1 mole less will be the occupied volume at S.T.P..more than 1 mole more wil be the volume at S.T.P..
    hence 1 mole is correct ans...

    ReplyDelete
  6. Friends 12th statement is not wrong as one guy answered below..the correct ans is C=1 MOLE
    Reason is that ...one mole of any type of ideal gas occupies the volume of 22.414dm`3 at S.T.P.....less than 1 mole less will be the occupied volume at S.T.P..more than 1 mole more wil be the volume at S.T.P..
    hence 1 mole is correct ans...

    ReplyDelete
  7. i can explain
    88.8% is %age as mass..total mass of water is 18.016g.
    16+2.016=18.016g
    so for oxygen;as in water it has only 1 atom so we take as 16 gram; calcs=
    16*100/18.016=88.8%

    ReplyDelete
  8. I m week in organic chemistry plzzz help me

    ReplyDelete
  9. Relavance to first question
    Isotopes have different mass numbers not atomic mass numbers both are different things ..

    ReplyDelete
  10. As mueen said
    1 mole of H=6.02x10^23 atoms of H=22.7dm^3
    So statement is absolutely correct

    ReplyDelete
  11. thanx all team of Medical entery test guide hmary lyy itna acha page bnaya but wearss the ans of this msqs :)

    ReplyDelete
  12. Check the comments please

    ReplyDelete
  13. plz give me ans of 7 and 15 with explanation

    ReplyDelete
  14. give me ans plz

    ReplyDelete
  15. aiman nadeem21 May 2014 18:15

    plzz help me m tnx too much cnt undrstd too much week in chem plzzzzzz help me :(

    ReplyDelete
  16. yes its correct

    ReplyDelete
  17. how.. i thin 15 has option a correct as 3.01*10^23 has .5 moles..... now according to frmula mole=mass/molar mass.... multiplying .5 with 23(molar mass of sulphur) ans is 11.5 which is more than 2g..so a option is correct

    ReplyDelete
  18. zoraiz haider4 June 2014 16:29

    pls ans and explain me question 13

    ReplyDelete
  19. All Answers will be available in Entry Test Class with hundreds of more MCQs

    ReplyDelete

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