#1
| |||
| |||
COMEDK
Will you please provide me the question paper of the COMEDK???
|
#2
| |||
| |||
Re: COMEDK, 2011
As per your requirement here I am uploading a pdf file having the question paper of the COMEDK examination, this attachment contains the question paper of chemistry subjects, all questions are objective type. I have taken following questions from the attachment: 1. The hybridization state of C atom in butendioic acid is : (1) sp2 (2) sp3 (3) both two (4) sp 2. Which of the following is not a isomer of pentane : (1) n-pentane (2) 2, 2-dimethy 1 propane (3) 2, 3-dimethy 1 butane (4) 2-methy 1 butane 3. The oxidation number of C atom in Ch2CI2 and CCI4 are respectively : (1) -2 and – 4 (2) 0 and – 4 (3) 0 and 4 (4) 2 and 4 4. Which of the following dissolves in lonic solvents : (1) C6H5 (2) CH3OH (3) CCI4 (4) C5H12 5. The conjugate acid of HS is : (1) S-2 (2) H2S2 (3) both two (4) none 6. Phenolphthalein of pH range [8-10] is used in which of the following type of titration as a suitable indicator : (1) NH4OH and HCI (2) NH4OH and HCOOH (3) NH4OH and C2H4O2 (4) NaOH and C2O4H2 7. Which of the following is iron are : (1) Malachite (2) Hernatite (3) Siderite (4) Limonite 8. The molar concentration of chloride ions in the resulting solution of 300 ml.of 3.0 M NaCI and 200 ml. of 4.0 M BaCl2 will be : (1) 1.7 M (2) 1.8 M (3) 5.0 M (4) 3.5 M 9. Which of the following has least bond energy : (1) N2 -2 (2) N2 - (3) N2 + (4) N2 10. Which of the following species has highest bond energy : (1) O2 -2 (2) O2 + (3) O2 - (4) O2 11. Which of the following compound is not aromatic : (1) 1, 3-cyclobutene (2) pyridine (3) furane (4) thiophene 12. Which of the following compound is used as refrigerant : (1) CCI2F2 (2) CCI4 (3) CF4 (4) Acetone 13. Which of the following is weak acid : (1) C6H6 (2) CH3-C≡CH (3) CH2=CH2 (4) CH3-C≡C-CH3 14. L.P.G. mainly consist of the following : (1) Methane (2) Hydrogen (3) Acetylene (4) Butane 15. The solubility product of CaCo3 is 5 x 10-9. The solubility will be : (1) 2.5 x 10-5 (2) 7 x 10-5 (3) 2.5 x 10-4 (4) 2.2 x 10-9 16. The outer electronic configuration of alkali earth metals is : (1) nd10 (2) ns1 (3) np6 (4) ns2 17. The nature of 2, 4, 6-trinitrophenol is : (1) Neutral (2) Basic (3) Acidic (4) Weak basic 18. Which of the following group is sharp ortho and para directive : (1) –C6H5 (2)-OH (3) –CH3 (4) –CI Remaining questions are in the attachment, please click on it…
__________________ https://t.me/pump_upp |