CUET(UG) Chemistry Sample Paper with Answer

CUET Chemistry Sample Paper with Answer

CUET(UG) Chemistry Sample Paper with Answer SET-1

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1. When an element of very low ionization potential is reacted with an element of very high electron affinity

A. A weak ionic bond is formed
B. A strong ionic bond is formed
C. A polar covalent bond is formed
D. A hydrogen bond is formed

Answer

B

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2. Which of the following order is not correct

A. Bond order: O₂⁺ > O₂ > O₂^– > O₂^–2
B. Boiling point: HF > HCl > HBr > HI
C. Ionization energy: N > O and Be > B
D. Electronegativity: N > C > P > Si

Answer

B

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3. The complex with highest number of unpaired electrons is

A. K₄[Fe(CN)₆]
B. K₄[FeF₆]
C. [Ti(H₂O)₆]⁺³
D. [Cr(NH₃)₆]⁺³

Answer

B

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4.The shape of SF₆ is same as that of

A. IF₇
B. IF₅
C. CO₂
D. [FeF₆]^–3

Answer

D

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5. The complex which would be colourless

A. [Ti(H₂O)]⁺⁴
B. [Cr(NH₃)₆]⁺³
C. [V(H₂O)₆]⁺²
D. [Mn(H₂O)₆]⁺²

Answer

A

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6. Lunar caustic is

A. CuSO₄
B. Ca(OH)₂
C. AgNO₃
D. Pb(OH)₂

Answer

C

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7. Alums are double sulphates of

A. Univalent metal and univalent metal
B. Univalent metal and trivalent metal
C. Univalent metal and divalent metal
D. Divalent metal and univalent metal

Answer

B

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8. The difference between a carbene and a carbanion is

A. A carbene is a positively charged species while a carbanion is a neutral species
B. A carbene is an organic molecule used to power green cars while a carbanion is any organic molecule that will not split from its grouping
C. Although both have a lone pair of electrons, a carbene is neutral species while a carbanion has a negative charge
D. A carbene remains cohesive while a carbanion is constantly shifting (which is why soda tastes fizzy)

Answer

C

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9. In the nitration of benzene,which of the following statements is not true

A. Conc. H₂SO₄ helps in producing NO₂⁺ B. A non-aromatic intermediate is formed
C. Benzene acts as an electrophile
D. A proton is lost in the final step

Answer

C

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10. Reaction of acetamide with solution of bromine in sodium hydroxide to give methyl amine is known as

A. Gabrial Synthesis
B. Hofmaan rearrangement
C. Curtius rearrangement
D. Reductive amination

Answer

B

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11. Hybridization of P in PH₃ is

A. sp³
B. dsp²
C. sp²d
D. not possible

Answer

D

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12. Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces

A. Dacron
B. PVC
C. Polyester
D. Nylon-6

Answer

A

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13. Monomer of nylon-6 is

A. Isoprene
B. Buna-N
C. Caprolactum
D. Amyl alcohol

Answer

C

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14. Three moles of an ideal gas expands spontaneously in a vacuum, the work done is

A. 3J
B. 3Cal
C. zero
D. 9J

Answer

C

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15. If the activation energy for forward reaction is lower than for backward reaction, then the reaction is

A. Endothermic
B. Exothermic
C. Chain
D. Steady State

Answer

B

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16. Number of translation, rotational and vibrational degrees of freedom for CO₂, respectively is

A. 3,3,3
B. 3,2,4
C. 3,3,6
D. 4,2,3

Answer

B

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17. In metal and graphite, the conductance is due to the flow of

A. Cations
B. Anions
C. Electrons
D. Both A and B

Answer

C

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18. Mark the solution having highest specific conductance

A. 1 M KCl
B. 0.1 M KCl
C. 0.01 M KCl
D. 0.001 M KCl

Answer

A

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19. The unit of rate of a first order reaction is

A. mol liter⁻¹sec
B. mol liter⁻¹
C. mol liter⁻²
D. time⁻¹

Answer

D

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20. How much portion of an atom located at corner and body centre of a cubic unit cell is part of its neighbouring unit cell respectively?

A. 1, 1/2
B. 1/2, 1
C. 1/8, 0
D. 1/8, 1/2

Answer

C

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21. 6 gm of urea was dissolved in 500 gm of water. The percentage (by mass) of urea in the solution is

A. 0.86%
B. 1.186%
C. 11.86%
D. 0.08%

Answer

B

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22. For which the value of Λ vs. √c is straight line

A. KCl
B. AcOH
C. HCOOH
D. CH₃NH₂

Answer

A

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23. For a general chemical change, 2A + 3B → Products, the rate of decomposition of A is r₁ and that of B is r₂. The rates r₁ and r₂ are related as

A. 3r₁ = 2r₂
B. r₁ = r₂
C. 2r₁ = 3r₂
D. r²₁ = 3r₂

Answer

A

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24. Zinc is extracted by

A. the carbon reduction of ZnO
B. the carbon monoxide reduction of ZnO
C. the hydrogen reduction of ZnO
D. the copper reduction of ZnO

Answer

A

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25. How many hydrate isomers are possible with the formula CrCl₃⋅6H₂O

A. Six
B. Four
C. Three
D. Two

Answer

C

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26. Different hydrated isomer of CrCl₃⋅6H₂O can not be differentiated by

A. Conductivty measurements
B. Magnetic moment
C. Dipole moment
D. Precipitation by AgNO₃

Answer

B

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27. Which of the following is a monomer of natural rubber

A. Chloroprene
B. Caprolactum
C. Urea
D. None of these

Answer

D

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28. The degree of dissociation of an electrolyte depends on

A. Nature of solute
B. Nature of solvent
C. Concentration of solute
D. All of these

Answer

D

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29. The correct order of equivalent conductance at infinite dilution of LiCl, NaCl and KCl is

A. LiCl > NaCl > KCl
B. KCl > NaCl > LiCl
C. NaCl > KCl > LiCl
D. LiCl > KCl > NaCl

Answer

B

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30. Which one of the following statements is incorrect

A. Specific conductivity decreases with dilution
B. Equivalent and molar conductivities increase with dilution
C. ʌ∞ for a weak electrolyte can not be found by extrapolation of the graph between ʌ and concentration to zero concentration
D. Molar conductivity of a strong electrolyte increases with dilution because ionization increases with dilution

Answer

D

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31. Choose the correct option of the following reaction

Answer

B

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32. Choose the correct option of the following reaction

Answer

C

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33. Which of the following is most stable carbocation

Answer

B

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34. Which of the following is most acidic

Answer

B

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35. Choose the correct option of the following reaction

Answer

A

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36. Acetaldol is a condensation product of

A. Two molecules of ethanal
B. Two molecules of propanone
C. Ethanal and methanal
D. Ethanal and propanone

Answer

A

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37. The synthesis of alkyl fluoride is best accomplished by

A. Finkelstein reaction
B. Swartz reaction
C. Free radical fluorination
D. Sandmeyers reaction

Answer

B

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38. Methyl ketones are usually characterised through

A. Tollen’s reagent
B. Iodoform test
C. Schiff’stest
D. Benedict solution test

Answer

B

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39. Fitting reaction can be used to prepare

A. Toluene
B. Acetophenon
C. Diphenyl
D. Chlorobenzene

Answer

C

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40. Schottky defect in crystals is observed when

A. Unequal number of cations and anions is missing from the crystal lattice
B. Equal number of cations and anions is missing from the crystal lattice
C. An ion leaves its normal site and occupies an interstitial site
D. Density of the crystal is increased

Answer

B

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41. Number of tetrahedral void in FCC unit cell is

A. 6
B. 8
C. 10
D. 12

Answer

B

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42. The correct orders of packing Fraction in different types of unit cells is

A. fcc < bcc < simple cubic
B. fcc > bcc > simple cubic
C. fcc < bcc > simple cubic
D. bcc < fcc > simple cubic

Answer

B

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43. Which of the following acids is a vitamin

A. Aspartic acid
B. Ascorbic acid
C. Adipic acid
D. Saccharic acid

Answer

B

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44. Nucleic acids are the polymers of

A. Nucleosides
B. Nucleotides
C. Bases
D. Sugars

Answer

B

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45. DNA and RNA contain four bases each. Which of the following bases is not present in RNA

A. Adenine
B. Uracil
C. Thymine
D. Cytosine

Answer

C

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SET-1 SET-2 SET-3 SET-4 SET-5 SET-6

CUET(UG) Chemistry Practice Questions with Answer

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