Q1. The length of IP address is?
- A.32 bits✓ Correct
- B.64 bits
- C.128 bits
- D.16 bits
Q2. Facebook was launched in?
- A.2004✓ Correct
- B.2005
- C.2006
- D.2007
Q3. The docx file contains?
- A.MS Office Word✓ Correct
- B.MS Office Excel
- C.MS Office PowerPoint
- D.MS Office Access
Q4. The file extension DLL stands for?
- A.Dynamic Link Library✓ Correct
- B.Direct Link Library
- C.Digital Link Library
- D.Data Link Library
Q5. The extension of a MS Access Database is?
- A..mdb
- B..accdb
- C..mdb and .accdb✓ Correct
- D..mdf
Q6. The key combination used to permanently delete a file from Windows computer?
- A.Shift + delete✓ Correct
- B.Ctrl + delete
- C.Alt + delete
- D.Delete
Q7. Shortcut Key to open a new document is?
- A.Ctrl + N✓ Correct
- B.Ctrl + O
- C.Ctrl + S
- D.Ctrl + P
Q8. Data is permanently stored in?
- A.Hard Disk✓ Correct
- B.RAM
- C.Cache
- D.ROM
Q9. What are the steps to upgrade a 32-bit version to a 64-bit version of Windows?
- A.It cannot be upgraded✓ Correct
- B.Reinstall Windows
- C.Use upgrade tool
- D.Download update
Q10. CSS stands for
- A.Cascading Style Sheets✓ Correct
- B.Computer Style Sheets
- C.Creative Style Sheets
- D.Colorful Style Sheets
Q11. The computer abbreviation "OS" stands for:
- A.Operating System✓ Correct
- B.Open System
- C.Optical System
- D.Office System
Q12. The file extension .jsp stands for:
- A.Java Server Page✓ Correct
- B.Java Script Page
- C.Java System Page
- D.Java Service Page
Q13. What is the full form of WWW?
- A.World Wide Web✓ Correct
- B.World Web Wide
- C.Wide World Web
- D.Web World Wide
Q14. The microphone converts the sound into:
- A.Electrical Signals✓ Correct
- B.Mechanical Signals
- C.Digital Signals
- D.Analog Signals
Q15. Windows 7 was released in which year?
- A.July 22, 2009✓ Correct
- B.2008
- C.2010
- D.2011
Q16. What is Windows XP?
- A.An Operating System✓ Correct
- B.A Software
- C.A Hardware
- D.A Network
Q17. ATM stands for:
- A.Automated Teller Machine✓ Correct
- B.Automatic Teller Machine
- C.Automated Transfer Machine
- D.Automatic Transfer Machine
Q18. ".gif" is an extension of which type of file?
- A.Image✓ Correct
- B.Video
- C.Audio
- D.Document
Q19. Who is the founder of IBM Company?
- A.Charles Ranlett Flint✓ Correct
- B.Thomas Watson
- C.Bill Gates
- D.Steve Jobs
Q20. When you delete an object, Windows XP sends it to:
- A.Recycle Bin✓ Correct
- B.Trash
- C.Clipboard
- D.Desktop
Q21. Copying a software without purchasing it is
- A.Software Piracy✓ Correct
- B.Software Theft
- C.Software Hacking
- D.Software Cracking
Q22. What is the use of Firewall in a computer?
- A.For security✓ Correct
- B.For speed
- C.For storage
- D.For networking
Q23. What is the full form of ISO?
- A.International Standard Organization✓ Correct
- B.International Organization for Standardization
- C.International Standards Office
- D.International System Organization
Q24. What is the official Twitter bird's name?
- A.Larry T Bird✓ Correct
- B.Twitter Bird
- C.Blue Bird
- D.Tweet Bird
Q25. CTRL + K use for in MS Office Word?
- A.Hyperlink✓ Correct
- B.Insert Link
- C.Create Link
- D.Add Link
Q26. What was the old domain name of Facebook?
- A.thefacebook.com✓ Correct
- B.facebook.com
- C.fb.com
- D.meta.com
Q27. Google was founded on:
- A.September 4, 1998✓ Correct
- B.1997
- C.1999
- D.2000
Q28. BASIC is the abbreviation of:
- A.Beginners All-purpose Symbolic Instruction Code✓ Correct
- B.Basic All-purpose Symbolic Instruction Code
- C.Beginners Anti Purpose Symbolic Instruction Codes
- D.Basic Anti Purpose Symbolic Instruction Codes
Q29. SOAP stands for:
- A.Small Object Access Protocol✓ Correct
- B.Simple Object Access Protocol
- C.Standard Object Access Protocol
- D.System Object Access Protocol
Q30. Dr. Solomon and McAfee are popular:
- A.Anti-Virus✓ Correct
- B.Software
- C.Hardware
- D.Games
Q31. Red wavy lines under text indicate:
- A.Spelling Mistakes✓ Correct
- B.Grammar Mistakes
- C.Formatting Errors
- D.Hyperlinks
Q32. The software that are available free of cost are called:
- A.Freeware✓ Correct
- B.Shareware
- C.Open Source
- D.Public Domain
Q33. By default the bar located at the bottom of the Desktop is:
- A.Taskbar✓ Correct
- B.Toolbar
- C.Menu Bar
- D.Status Bar
Q34. The transfer of data from one place to another is called:
- A.Data Communication✓ Correct
- B.Data Transfer
- C.Data Transmission
- D.Data Exchange
Q35. In Windows 7, what is the shortcut key for creating a New Folder?
- A.Ctrl + Shift + N✓ Correct
- B.Ctrl + N
- C.Alt + N
- D.Shift + N
Q36. What is the full form of TCP?
- A.Transmission Control Protocol✓ Correct
- B.Transfer Control Protocol
- C.Transport Control Protocol
- D.Transmission Communication Protocol
Q37. The total number of function keys in a computer keyboard are:
- A.12 Keys✓ Correct
- B.10 Keys
- C.14 Keys
- D.16 Keys
Q38. A network that covers small geographic area or single or group of buildings is called:
- A.LAN (Local Area Network)✓ Correct
- B.WAN (Wide Area Network)
- C.MAN (Metropolitan Area Network)
- D.PAN (Personal Area Network)
Q39. What is the full form of Wi-Fi?
- A.Wireless Fidelity✓ Correct
- B.Wireless Frequency
- C.Wireless Fiber
- D.Wireless Finder
Q40. What is the full form of PDF?
- A.Portable Document Format✓ Correct
- B.Personal Document Format
- C.Printable Document Format
- D.Public Document Format
Q41. Windows 10 was launched in which year?
- A.2015✓ Correct
- B.2014
- C.2016
- D.2017
Q42. Who invented the Qwerty Keyboard?
- A.Christopher Latham Sholes✓ Correct
- B.Christopher Sholes
- C.Latham Sholes
- D.Sholes
Q43. CTRL + Z used for
- A.Undo✓ Correct
- B.Redo
- C.Cut
- D.Copy
Q44. CTRL + Y used for:
- A.Redo✓ Correct
- B.Undo
- C.Repeat
- D.Refresh
Q45. CTRL +P used for:
- A.Print✓ Correct
- B.Paste
- C.Preview
- D.Page Setup
Q46. F1 used for
- A.Help✓ Correct
- B.Find
- C.Format
- D.File
Q47. Alt + Tab used for:
- A.Show Recent Opened System✓ Correct
- B.Switch between windows
- C.Close window
- D.Open Task Manager
Q48. Alt + F4 used for:
- A.Close Window✓ Correct
- B.Exit
- C.Shutdown
- D.Restart
Q49. The file extension PNG stands for:
- A.Portable Network Graphic File✓ Correct
- B.Portable Network Graphics
- C.Personal Network Graphic
- D.Public Network Graphic
Q50. What is meaning of .mng?
- A.Multiple Network Graphic✓ Correct
- B.Multiple Network Graphics
- C.Multiple Image Network Graphics
- D.Multiple Network Image
Q51. Which of the following is not a characteristic of organic compounds?
- A.They usually have low melting points.
- B.They usually are only slightly soluble or insoluble in water.
- C.If water soluble they seldom conduct an electric current.
- D.Bonds which bind the atoms together are nearly always ionic.✓ Correct
Q52. The element least likely to be found in an organic compound is
- A.oxygen
- B.sulfur
- C.nitrogen
- D.silicon✓ Correct
Q53. One of the major sources of organic compounds is
- A.Natural gas✓ Correct
- B.Fermentation
- C.Sea water
- D.Atmosphere
Q54. Catenation is a property of the carbon atom which describes its ability to
- A.bond with other carbon atoms✓ Correct
- B.form double and triple bonds
- C.exist in plant and animal form
- D.form bonds in its ground state
Q55. In stable organic compounds, carbon will always form
- A.2 bonds
- B.4 bonds✓ Correct
- C.3 bonds
- D.5 bonds
Q56. Carbon-carbon double bonds consist of :
- A.one σ bond, one π bond✓ Correct
- B.two σ bonds, one π bond
- C.one σ bond, two π bonds
- D.two σ bonds, two π bonds
Q57. Acetylene has a total of :
- A.one σ bond, two π bonds
- B.two σ bonds, four π bonds
- C.three σ bonds, two π bonds✓ Correct
- D.one σ bond, four π bonds
Q58. In propene there are
- A.eight σ bonds and one π bond✓ Correct
- B.seven σ bonds and two π bonds
- C.six σ bonds and three π bonds
- D.nine σ bonds
Q59. In propyne there are
- A.six σ bonds and two π bonds✓ Correct
- B.seven σ bonds and one π bond
- C.six σ bonds and one π bond
- D.eight σ bonds
Q60. 1-Buten-3-yne has
- A.six σ and four π bonds
- B.seven σ and three π bonds✓ Correct
- C.eight σ and two π bonds
- D.nine σ and one π bond
Q61. Compound in which carbons use only sp3 hybrid orbitals for bond formation is
- A.CH3CH2CH3✓ Correct
- B.CH3C≡CH
- C.CH3CH=CH2
- D.CH2=CH—CH=CH2
Q62. Compound in which carbon uses sp3 hybrid orbitals for bond formation is
- A.H2C=C=CH2
- B.H2N—C≡N
- C.H—C≡N
- D.(CH3)3COH✓ Correct
Q63. When the carbon atom is sp2 hybridized in a compound, it is bonded to
- A.2 other atoms
- B.4 other atoms
- C.3 other atoms✓ Correct
- D.5 other atoms
Q64. Compound in which carbons use only sp2 hybrid orbitals for bond formation is
- A.CH3CH3
- B.CH2=CH2
- C.CH2=CH-CH=CH2✓ Correct
- D.CH3CH=C=CH2
Q65. Which of the following is a planar molecule?
- A.Formaldehyde✓ Correct
- B.Acetone
- C.Formic acid
- D.Acetic acid
Q66. What is bond angle between the hybrid orbitals in methane?
- A.180°
- B.120°
- C.109.5°✓ Correct
- D.115.5°
Q67. The H-C-C bond angle in ethane is
- A.60°
- B.109.5°✓ Correct
- C.120°
- D.118°28'
Q68. The H-C-H bond angle in ethylene is
- A.60°
- B.120°✓ Correct
- C.90°
- D.180°
Q69. What is the bond length of a carbon-carbon double bond?
- A.1.20 Å
- B.1.34 Å✓ Correct
- C.1.54 Å
- D.1.68 Å
Q70. The carbon-carbon bond lengths in rank of increasing bond length is :
- A.triple, double, single✓ Correct
- B.single, double, triple
- C.single, triple, double
- D.triple, single, double
Q71. Which of the following is the correct order of bond lengths :
- A.C-C < C=C < C≡C
- B.C-C > C=C > C≡C✓ Correct
- C.C=C > C-C > C≡C
- D.C=C < C-C > C≡C
Q72. Which of the following hydrocarbons has the shortest C-C bond length?
- A.CH2=CH2
- B.CH3CH3
- C.HC≡CH✓ Correct
- D.CH3CH2CH3
Q73. The carbon-carbon bond length is maximum in
- A.CH2=CH2
- B.CH3CH3✓ Correct
- C.HC≡CH
- D.CH3CH2CH3
Q74. What is the hybridization of the carbon atoms numbered 1 and 2 respectively in the following structure? CH≡C-CH=CH2
- A.sp3, sp2
- B.sp2, sp2
- C.sp, sp
- D.sp2, sp✓ Correct
Q75. How many atoms are attached to an atom having a sp hybridization?
Q76. Which statement is true?
- A.Resonance hybrids are inherently unstable.
- B.Resonance hybrids are more stable than any individual resonance form.
- C.Resonance hybrids are averages of all resonance forms resembling the less stable forms.
- D.Resonance hybrids are averages of all resonance forms resembling the more stable forms.✓ Correct
Q77. Resonance structures of a molecule have
- A.same arrangement of atoms✓ Correct
- B.different arrangement of atoms
- C.same number of paired electrons
- D.different number of paired electrons
Q78. Which of the following compounds have planar molecules?
- A.ethyl alcohol
- B.formaldehyde✓ Correct
- C.diethyl ether
- D.1,3-butadiene
Q79. Which of the following compounds will show dipole moment?
- A.cis-1,2-dichloroethylene✓ Correct
- B.o-dichlorobenzene
- C.trans-1,2-dichloroethylene
- D.p-dichlorobenzene
Q80. Which molecule has a nonzero dipole moment?
- A.Cl2
- B.CO2
- C.CCl4
- D.CHCl3✓ Correct
Q81. Which of the following compounds have lowest dipole moment?
- A.carbon tetrachloride✓ Correct
- B.chloromethane
- C.dichloromethane
- D.chloroform
Q82. Which molecule has the greatest dipole moment
- A.CH3Cl
- B.CH3Br
- C.CH3F✓ Correct
- D.CH3I
Q83. Which of the following compounds have highest dipole moment?
- A.dichloromethane✓ Correct
- B.chloroform
- C.chloromethane
- D.carbon tetrachloride
Q84. Homolytic fission of C-C bond leads to the formation of :
- A.Free radicals✓ Correct
- B.Carbonium ions
- C.Carbanions
- D.None of these
Q85. Homolytic fission of covalent bond between carbon atoms will produce :
- A.Two carbonium ions
- B.Two molecules
- C.Free radicals✓ Correct
- D.Carbonium ion and carbanion
Q86. The order of stability of carbonium ions is
- A.tertiary > secondary > primary✓ Correct
- B.secondary > tertiary > primary
- C.primary > secondary > tertiary
- D.primary > tertiary > secondary
Q87. The order of stability of carbanions is
- A.primary > secondary > tertiary✓ Correct
- B.secondary > tertiary > primary
- C.tertiary > secondary > primary
- D.tertiary > primary > secondary
Q88. Which of the following carbonium ions will be most stable?
- A.•CH3
- B.CH3•CH2
- C.(CH3)2•CH2
- D.CH2=CH•CH2✓ Correct
Q89. The least stable carbanion is :
- A.C6H5CH2-
- B.(CH3)3C-✓ Correct
- C.CCl3-
- D.CH3-
Q90. Which alkyl free radical is the most stable?
- A.methyl
- B.primary
- C.secondary
- D.tertiary✓ Correct
Q91. Which of the following is an electrophile?
- A.CH3O-
- B.CH3C+H2✓ Correct
- C.NH3
- D.CH3CH2-
Q92. Which of the following is not an electrophile?
- A.NH3✓ Correct
- B.Br+
- C.AlCl3
- D.NO2+
Q93. Which of the following statements is correct regarding nucleophiles?
- A.They have an overall positive charge
- B.They have a lone-pair of electrons✓ Correct
- C.They have an unpaired electron
- D.They have empty orbitals
Q94. Which of the following is a nucleophile?
- A.AlCl3
- B.H3O+
- C.BF3
- D.CN-✓ Correct
Q95. Which of the following is not a nucleophile?
- A.NH3
- B.HSO3-
- C.AlCl3✓ Correct
- D.HO-
Q96. Which of the following is a Lewis acid?
- A.AlCl3✓ Correct
- B.CH3OH
- C.NH3
- D.CH3OCH3
Q97. Which of the following ranges best represents the strength of a hydrogen bond?
- A.5-10 kcals✓ Correct
- B.60-80 kcals
- C.80-100 kcals
- D.100-120 kcals
Q98. Which describes the bond strength or bond dissociation energy?
- A.energy required to break a bond
- B.energy released when a bond breaks
- C.energy released when a bond is formed
- D.(a) and (c)✓ Correct
Q99. Which statement is correct?
- A.Energy is released when a bond breaks.
- B.A sigma bond results from attraction of protons and electrons.
- C.Energy is released when a bond forms.✓ Correct
- D.A carbanion is positively charged.
Q100. Which of the following is incorrect?
- A.Resonance stabilization is the extra stability a compound gains from having delocalized electrons.
- B.Delocalized electrons destabilize a compound.✓ Correct
- C.The greater the number of relatively stable resonance contributors, the greater is the resonance stabilization.
- D.(a) and (c)
Q101. Which of the following is correct?
- A.Curved arrows are always drawn from an electron poor center to an electron rich center.
- B.A doubled headed arrow means one electron has been moved.
- C.Curved arrows are always drawn from an electron rich center to an electron poor center.✓ Correct
- D.A single headed arrow means two electrons have been moved.
Q102. What does a “curved” arrow represent?
- A.that two structures are resonance structures
- B.the movement of two electrons✓ Correct
- C.a link between reactants and products
- D.that two structures are equivalent
Q103. What is the predicted shape, bond angle, and hybridization for CH3+?
- A.trigonal planar, 120°, sp2✓ Correct
- B.trigonal planar, 120°, sp3
- C.trigonal planar, 109.5°, sp2
- D.trigonal pyramidal, 120°, sp2
Q104. What is the name given for a species that contains a positively charged carbon atom?
- A.carbanion
- B.carbocation✓ Correct
- C.methyl radical
- D.free radical
Q105. What orbitals overlap to create the H-C bond in CH3+?
- A.sp3-sp3
- B.sp2-sp3
- C.s-p
- D.s-sp2✓ Correct
Q106. The lone-pair electrons of the methyl anion occupy a ______ orbital.
- A.s
- B.sp
- C.sp2
- D.sp3✓ Correct
Q107. An increase in which of the following results in a decrease in the rate of the chemical reaction?
- A.temperature
- B.concentration
- C.collision frequency
- D.energy of activation✓ Correct
Q108. The reaction step that has its transition state at the highest point on the reaction coordinate is the called the
- A.rate-determining step✓ Correct
- B.activation energy
- C.transition step
- D.product favored step
Q109. An electrophile acts as a ______ when it reacts with a nucleophile.
- A.Bronsted-Lowry base
- B.Arrhenius base
- C.Lewis acid✓ Correct
- D.Lewis base
Q110. A nucleophile acts as a ______ when it reacts with an electrophile.
- A.Bronsted-Lowry acid
- B.Arrhenius base
- C.Lewis acid
- D.Lewis base✓ Correct
Q111. Which of the following is not normally considered to be a nucleophile?
- A.NH3
- B.CH3NH2
- C.HC≡C:-
- D.CH3CH2+✓ Correct
Q112. Which of the following is the strongest interaction?
- A.a covalent bond✓ Correct
- B.dipole-dipole interactions
- C.hydrogen bonding
- D.van der Waals
Q113. Which of the following statements is incorrect?
- A.Electrons move toward positively charged locations.
- B.An electron-rich atom is called an electrophile.✓ Correct
- C.An electrophile is electron loving.
- D.A nucleophile has a pair of electrons it can share.
Q114. Which of the following is a nonpolar molecule?
- A.HCl
- B.CH3Cl
- C.H2✓ Correct
- D.NH3
Q115. Which is defined as a species that accepts a proton?
- A.Lewis acid
- B.Lewis base
- C.Bronsted-Lowry acid
- D.Bronsted-Lowry base✓ Correct
Q116. Which statement is correct about acid-base chemistry?
- A.the larger the Ka, the stronger the acid
- B.a small pKa correspond to a large Ka
- C.the smaller the pKa, the stronger the acid
- D.all of the above✓ Correct
Q117. Which of the following statements is correct?
- A.The stronger the acid, the weaker its conjugate base.✓ Correct
- B.The stronger the acid, the stronger its conjugate base.
- C.The weaker the acid, the weaker its conjugate base.
- D.The stronger the base, the stronger its conjugate acid.
Q118. What is the conjugate acid of CH3NH2?
- A.CH3NH3+✓ Correct
- B.CH3NH-
- C.NH4+
- D.NH2-
Q119. Whats the conjugate base of CH3NH2?
- A.CH3NH3+
- B.CH3NH-✓ Correct
- C.NH4+
- D.NH2-
Q120. The stronger the acid A
- A.the less stable its conjugate base
- B.the larger the pKa
- C.the weaker its conjugate base✓ Correct
- D.the larger the pH
Showing the first 120 of 200 MCQs.