CHEMISTRY- PAGE 10
1. Chlorophyll contains which of the following metals :
1) Na
2) Mg
3) Ni
4) Cu
Ans: 2
2. Inert pair effect is maximum in :
1) N
2) P
3) As
4) Bi
Ans: 4
3. On the basis of Molecular Orbital Theory the bond order in CO is :
1) 0
2) 1
3) 2
4) 3
Ans: 4
4. In which of the following compounds K-band appears
1) Benzene
2) Butadiene
3) Mesityl oxide
4) All of these
Ans: 4
5. The emission of a beta particle from the nucleus of a radioactive element raises the positive charge by :
1) 1
2) 2
3) 3
4) 4
Ans: 1
6. Rutile is an ore of :
1) Ti
2) Pt
3) Ni
4) Cr
Ans: 1
7. Vitamin B12 contains :
1) Fe
2) Co
3) Ni
4) Mg
Ans: 2
8. The ratio of the number of moles consumed in the process and number of photons absorbed by it is called :
1) Photon Energy
2) Photon Density
3) Quantum Yield
4) Einsteins
Ans: 3
9. The gas which is filled in electric bulb is :
1) He
2) Ne
3) Ar
4) Rn
Ans: 3
10. The Valence bond theory is proposed by whom of the following :
1) L. Pauling and J.L. Slater
2) Werner
3) Hans Brethe and J. Van Vleck
4) L. Orgel
Ans: 1
11. In nature Mg, Ca and Al exist as carbonate metal ores and not as metal sulphide ores due to one of the following acid base priciples :
1) BroSnsted Laury Concept
2) Arrhenius Theory
3) Pearson Principle of SHAB
4) Usanovic Principle
Ans: 3
12. The exact molecular weight can be determined by :
1) IR Spectroscopy
2) UV-VIS Spectroscopy
3) Mass Spectroscopy
4) NMR Spectroscopy
Ans: 3
13. The highest oxidation state shown by rhenium is :
1) +5
2) +6
3) +7
4) +8
Ans: 3
14. Bhopal Gas Tragedy is a case of :
1) Thermal Pollution
2) Air Pollution
3) Nuclear Pollution
4) Soil Pollution
Ans: 2
15. BOD of river is high, it means river is :
1) Very much polluted with inorganic chemicals.
2) Very much polluted with organic chemical which are decomposed by micro organisms
3) Polluted with Pesticides
4) Not Polluted
Ans: 2
16. The metal extracted from sea water is :
1) Mg
2) Al
3) Ba
4) Ca
Ans: 1
17. Fertilizer having the highest nitrogen percentage is :
1) Calcium Cyanide
2) Urea
3) Ammonium Nitrate
4) Ammonium Sulphate
Ans: 2
18. The decrease in the value of molar extinction coefficient of an absorption band due to substitution in a molecule is called :
1) Bathochromic Shift
2) Hypochromic Shift
3) Hypsochromic Shift
4) Hyperchromic Shift
Ans: 2
19. Which of the following vibrations is of the highest energy requirement ?
1) Symmetric Stretching
2) Asymmetric Stretching
3) Twisting
4) Wagging
Ans: 2
20. What is the pH of normal rain water ?
1) 4.3
2) 5.6
3) 7.0
4) 7.5
Ans: 2
21. Which property of a substance is measured in thermogravimetric analysis (TGA) ?
1) Change in temperature
2) Change in weight
3) Heat evolved or absorved
4) Heating Rate
Ans: 2
22. The common temperature detection devices used in DTA are :
1) Thermocouples
2) Thermopiles
3) Thermistors
4) All of these
Ans: 4
23. Which radiations of electromagnetic spectrum is used in Mossbauer spectroscopy ?
1) Radiowaves
2) Microwaves
3) XRays
4) Gamma Rays
Ans: 4
24. Forensic scientists use the reaction of luminol to detect blood at crime scenes. It is an example of :
1) Phosphorescence
2) Fluorescence
3) Chemiluminescence
4) Intersystem Crossing
Ans: 3
25. The term ' analyte' is used in TLC for the :
1) compound to be purified
2) solvent run in column
3) Adsorbent filled in column
4) Retention factor
Ans: 1
26. Who got Nobel Prize for inventing partition and thin layer Chromatography ?
1) Paul J. Flory
2) D.H.R. Barton and O. Hassel
3) Arthur Harden and H. Von Euler Chelpin
4) A.J.P. Martin and R.L.M. Synge
Ans: 4
27. On photolysis hexan-2-one gives propene and acetone. The process is known as :
1) Norrish type I process
2) Norrish type II process
3) Mc Lafferty rearrangement
4) Photochemical isomerizations
Ans: 2
28. In nature the principal decomposition product of DDT is :
1) Aldrin
2) Dieldrin
3) Chlordan
4) DDE
Ans: 4
29. The energy produced in the Sun and stars is due to :
1) Nuclear Fusion
2) Nuclear Fission
3) Photochemical Reaction
4) Thermal Chemical Reaction
Ans: 1
30. 'Fat man' relates to :
1) PuBomb
2) UBomb
3) HBomb
4) ThBomb
Ans: 1
31. The electrons which contribute to isomer shift in Mossbauer spectroscopy are :
1) selectrons
2) pelectrons
3) delectrons
4) felectrons
Ans: 1
32. Movement of nuclei is negligible during the time taken by the electronic transition, it is called :
1) Franck Condon Principle
2) Born Oppenheimer approximation
3) Lamberts Beers Law
4) Huckel Approximation
Ans: 1
33. The region extending from 380nm to 750nm is called :
1) Near U.V.
2) Quartz U.V.
3) I.R.
4) Visible Region
Ans: 4
34. The most widely used flame in atomic absorption is :
1) Air-acetylene
2) Air Propane
3) Air coal gas
4) Oxyacetylene
Ans: 1
35. Which of the following statement is incorrect :
1) DTA curves are influenced by heating rate
2) Peak area decreases with increasing particle size
3) DTA curves are influenced by chart speed
4) Peak area does not depend on quantity of sample
Ans: 4
36. The full form of RIA is :
1) Radio Immuno Assay
2) Radio Immuno Analysis
3) Radio Isotope Analysis
4) None of these
Ans: 1
37. The ability of water to absorb hydrogen ions without significant pH change is called :
1) Acidity
2) Alkalinity
3) Neutrality
4) None of these
Ans: 2
38. If a photochemical reaction has higher quantum yield than unity, it indicates
1) A reversible reaction
2) An elementary reaction
3) A chain reaction
4) None of these
Ans: 3
39. Radio carbon dating was developed by ?
1) M. Curie
2) M. Calvin
3) H. Becquereel
4) W. F. Libby
Ans: 4
1) Na
2) Mg
3) Ni
4) Cu
Ans: 2
2. Inert pair effect is maximum in :
1) N
2) P
3) As
4) Bi
Ans: 4
3. On the basis of Molecular Orbital Theory the bond order in CO is :
1) 0
2) 1
3) 2
4) 3
Ans: 4
4. In which of the following compounds K-band appears
1) Benzene
2) Butadiene
3) Mesityl oxide
4) All of these
Ans: 4
5. The emission of a beta particle from the nucleus of a radioactive element raises the positive charge by :
1) 1
2) 2
3) 3
4) 4
Ans: 1
6. Rutile is an ore of :
1) Ti
2) Pt
3) Ni
4) Cr
Ans: 1
7. Vitamin B12 contains :
1) Fe
2) Co
3) Ni
4) Mg
Ans: 2
8. The ratio of the number of moles consumed in the process and number of photons absorbed by it is called :
1) Photon Energy
2) Photon Density
3) Quantum Yield
4) Einsteins
Ans: 3
9. The gas which is filled in electric bulb is :
1) He
2) Ne
3) Ar
4) Rn
Ans: 3
10. The Valence bond theory is proposed by whom of the following :
1) L. Pauling and J.L. Slater
2) Werner
3) Hans Brethe and J. Van Vleck
4) L. Orgel
Ans: 1
11. In nature Mg, Ca and Al exist as carbonate metal ores and not as metal sulphide ores due to one of the following acid base priciples :
1) BroSnsted Laury Concept
2) Arrhenius Theory
3) Pearson Principle of SHAB
4) Usanovic Principle
Ans: 3
12. The exact molecular weight can be determined by :
1) IR Spectroscopy
2) UV-VIS Spectroscopy
3) Mass Spectroscopy
4) NMR Spectroscopy
Ans: 3
13. The highest oxidation state shown by rhenium is :
1) +5
2) +6
3) +7
4) +8
Ans: 3
14. Bhopal Gas Tragedy is a case of :
1) Thermal Pollution
2) Air Pollution
3) Nuclear Pollution
4) Soil Pollution
Ans: 2
15. BOD of river is high, it means river is :
1) Very much polluted with inorganic chemicals.
2) Very much polluted with organic chemical which are decomposed by micro organisms
3) Polluted with Pesticides
4) Not Polluted
Ans: 2
16. The metal extracted from sea water is :
1) Mg
2) Al
3) Ba
4) Ca
Ans: 1
17. Fertilizer having the highest nitrogen percentage is :
1) Calcium Cyanide
2) Urea
3) Ammonium Nitrate
4) Ammonium Sulphate
Ans: 2
18. The decrease in the value of molar extinction coefficient of an absorption band due to substitution in a molecule is called :
1) Bathochromic Shift
2) Hypochromic Shift
3) Hypsochromic Shift
4) Hyperchromic Shift
Ans: 2
19. Which of the following vibrations is of the highest energy requirement ?
1) Symmetric Stretching
2) Asymmetric Stretching
3) Twisting
4) Wagging
Ans: 2
20. What is the pH of normal rain water ?
1) 4.3
2) 5.6
3) 7.0
4) 7.5
Ans: 2
21. Which property of a substance is measured in thermogravimetric analysis (TGA) ?
1) Change in temperature
2) Change in weight
3) Heat evolved or absorved
4) Heating Rate
Ans: 2
22. The common temperature detection devices used in DTA are :
1) Thermocouples
2) Thermopiles
3) Thermistors
4) All of these
Ans: 4
23. Which radiations of electromagnetic spectrum is used in Mossbauer spectroscopy ?
1) Radiowaves
2) Microwaves
3) XRays
4) Gamma Rays
Ans: 4
24. Forensic scientists use the reaction of luminol to detect blood at crime scenes. It is an example of :
1) Phosphorescence
2) Fluorescence
3) Chemiluminescence
4) Intersystem Crossing
Ans: 3
25. The term ' analyte' is used in TLC for the :
1) compound to be purified
2) solvent run in column
3) Adsorbent filled in column
4) Retention factor
Ans: 1
26. Who got Nobel Prize for inventing partition and thin layer Chromatography ?
1) Paul J. Flory
2) D.H.R. Barton and O. Hassel
3) Arthur Harden and H. Von Euler Chelpin
4) A.J.P. Martin and R.L.M. Synge
Ans: 4
27. On photolysis hexan-2-one gives propene and acetone. The process is known as :
1) Norrish type I process
2) Norrish type II process
3) Mc Lafferty rearrangement
4) Photochemical isomerizations
Ans: 2
28. In nature the principal decomposition product of DDT is :
1) Aldrin
2) Dieldrin
3) Chlordan
4) DDE
Ans: 4
29. The energy produced in the Sun and stars is due to :
1) Nuclear Fusion
2) Nuclear Fission
3) Photochemical Reaction
4) Thermal Chemical Reaction
Ans: 1
30. 'Fat man' relates to :
1) PuBomb
2) UBomb
3) HBomb
4) ThBomb
Ans: 1
31. The electrons which contribute to isomer shift in Mossbauer spectroscopy are :
1) selectrons
2) pelectrons
3) delectrons
4) felectrons
Ans: 1
32. Movement of nuclei is negligible during the time taken by the electronic transition, it is called :
1) Franck Condon Principle
2) Born Oppenheimer approximation
3) Lamberts Beers Law
4) Huckel Approximation
Ans: 1
33. The region extending from 380nm to 750nm is called :
1) Near U.V.
2) Quartz U.V.
3) I.R.
4) Visible Region
Ans: 4
34. The most widely used flame in atomic absorption is :
1) Air-acetylene
2) Air Propane
3) Air coal gas
4) Oxyacetylene
Ans: 1
35. Which of the following statement is incorrect :
1) DTA curves are influenced by heating rate
2) Peak area decreases with increasing particle size
3) DTA curves are influenced by chart speed
4) Peak area does not depend on quantity of sample
Ans: 4
36. The full form of RIA is :
1) Radio Immuno Assay
2) Radio Immuno Analysis
3) Radio Isotope Analysis
4) None of these
Ans: 1
37. The ability of water to absorb hydrogen ions without significant pH change is called :
1) Acidity
2) Alkalinity
3) Neutrality
4) None of these
Ans: 2
38. If a photochemical reaction has higher quantum yield than unity, it indicates
1) A reversible reaction
2) An elementary reaction
3) A chain reaction
4) None of these
Ans: 3
39. Radio carbon dating was developed by ?
1) M. Curie
2) M. Calvin
3) H. Becquereel
4) W. F. Libby
Ans: 4
40:-Equimolar solution in the same solvent have
A:-same boiling point but different freezing point
B:-same freezing point but different boiling point
C:-same boiling point and same freezing point
D:-different boiling point and different freezing point
Ans: C
41:-Which one of the following is not a condensation polymer?
A:-Terylene
B:-Neoprene
C:-Melamine
D:-Bakelite
Ans: B
42:-The number of octahedral void(s) per atom present in a cubic close packed structure is
A:-3
B:-4
C:-1
D:-2
Ans: C
43:-Tincture of iodine is
A:-alcoholic solution of `"I_2"`
B:-solution of `"I_2"` in aqueous KI
C:-aqueous solution of `"I_2"`
D:-aqueous solution of KI
Ans: A
44:-Which of the following reaction will not result in the formation of C-C bond?
A:-Reimer-Tiemann reaction
B:-Friedel-Craft's reaction
C:-Wurtz reaction
D:-Cannizaro reaction
Ans: D
45. Teflon is a polymer of which of the following monomers?
A:- Tetrafluoroethylene
B:- Vinyl chloride
C:- Chloroprene
D:- Acetylene dichloride
Ans: A
A:-same boiling point but different freezing point
B:-same freezing point but different boiling point
C:-same boiling point and same freezing point
D:-different boiling point and different freezing point
Ans: C
41:-Which one of the following is not a condensation polymer?
A:-Terylene
B:-Neoprene
C:-Melamine
D:-Bakelite
Ans: B
42:-The number of octahedral void(s) per atom present in a cubic close packed structure is
A:-3
B:-4
C:-1
D:-2
Ans: C
43:-Tincture of iodine is
A:-alcoholic solution of `"I_2"`
B:-solution of `"I_2"` in aqueous KI
C:-aqueous solution of `"I_2"`
D:-aqueous solution of KI
Ans: A
44:-Which of the following reaction will not result in the formation of C-C bond?
A:-Reimer-Tiemann reaction
B:-Friedel-Craft's reaction
C:-Wurtz reaction
D:-Cannizaro reaction
Ans: D
45. Teflon is a polymer of which of the following monomers?
A:- Tetrafluoroethylene
B:- Vinyl chloride
C:- Chloroprene
D:- Acetylene dichloride
Ans: A
46. What is the chemical name of DDT?
(A) Dichloro diphenyl trichloro ethane
(B) Dichloro diphenyl tribromo ethane
(C) Diphenyl dichloro trichloro ethane
(D) Diphenyl dibromo trichloro ethane
Answer: A
(A) Dichloro diphenyl trichloro ethane
(B) Dichloro diphenyl tribromo ethane
(C) Diphenyl dichloro trichloro ethane
(D) Diphenyl dibromo trichloro ethane
Answer: A
