Chap 7 _2 (2nd year)

15:57:00 Unknown 0 Comments

36.        Which process increases the yield of gasoline from petroleum?
a) Cracking                    b) Polymerization
c) Reforming                 d) Sublimation

37.        Consider the reaction
            3C2H2  C6H6
            This is the example of

a) Pyrolysis                   b) Polymerization
c) Sublimation               d) Addition

38.        Which one is acyclic hydrocarbon?

a) C6H6                                                    b) C2H6
c) C6H12                          d) CH4

39.        Which type of isomerism is shown by the following compounds?
            CH3 – CH2 – CHO, CH3 – CO – CH3

a)     Chain isomerism
b)    Position isomerism
c)     Metamerism
d)    Functional group isomerism

40.        The type of isomerism found in 1 – butene and 2 – butane is

a) Position                    b) Chain
c) Functional group       d) Metamerism

41.        The members of which of these have similar methods of preparation and properties

a) Isomers                     b) Homologues
c) Polymers                  d) Monomers

42.        The maximum number of isomers for an alkene with molecular formula C4H8 is

a) 2                               b) 3
c) 4                               d) 5

43.        Which of the following is most stable ion?

a) CH3 – H2C+                b) (CH3)2 HC+
c) (CH3)3 C+                   d) All of these

44.        Which of the following is not an organic compound?

a) Urea                          b) Oxalic acid
c) Natural gas                d) Plaster of Paris

45.        Kerosine oil is a mixture of

a) Alkane                       b) Alkene
c) Alkynes                     d) All of these

46.        Which of the following compounds does not contain an OH group?

a) Alcohol                     b) Phenol
c) Aldehyde                  d) Carboxylic acid

47.        The chemical formula of chloride is

a) CH3OH                      b) CCl3OH
c) CCl3CHO                   d)   None of these

48.        Petroleum in the unrefined form is called ____

            a) Rock oil                    b) Coal gas
            c) Crude oil                   d) Both a & c

49.        Natural gas mainly consists of ________

            a) Methane                    b) Ethane
            c) Propane                    d) Butane

50.        _______ is a mixture of methane, ethane,
            propane and butane, used as a fuel and for
            making other organic chemicals.

            a) Refinery gas              b) Gasoline
            c) Kerosene oil              d) Gas oil

51.        A large number of organic compounds,
            especially the unsaturated ones, show a great
            tendency to unit. This process is termed as
            ______

            a) Pyrolysis                   b) Cracking
            c) Polymerization           d) None of these

52.        An isomer of ethanol is ________

            a) Dimethyl ether           b) Diethyl ether
            c) Ethylene glycol          d) Methanol

53.        When ethylene is heated under pressure, a
            transparent solid polymer, ________ is
            obtained.

            a) Polyethene                b) Ethane
            c) Methane                    d) None of these

54.        The quality of petroleum is determined by
            _______

            a) Decane number         b) Octane number
            c) Hexane number         d) None of these

55.        Two or more than two different compounds
            having the same molecular formula but
            different carbon chains or skeletons are said
            to be ______

            a) Chain isomers
            b) Position isomers
            c) Functional group isomers
            d) Metamers

56.        The kind of isomerism which depends upon
            the relative position of the functional group, or
            the position of double or tripe bond in case of
            unsaturated compounds is termed as
            ________

            a) Chain isomerism
            b) Position isomerism
            c) Functional group isomerism
            d) Metamerism

57.        Isomerism, which involves compounds having
            the same molecular formula, but different
            functional groups are called _______

            a) Chain isomerism
            b) Position isomerism
            c) Functional group isomerism
            d) Metamerism

58.        _______ is exhibited by compounds having
            the same functional group but different alkyl
            attached to the same multivalent atom.

            a) Chain isomerism
            b) Position isomerism
            c) Functional group isomerism
            d) Metamerism

59.        In cracking usually catalyst used is _______

            a) Pt                 b) Aluuminosilicate
            c) Ni                 d) Tetra ethyl lead

60.        In CCl4 molecule the four valencies of carbon
            atom are directing towards the corners of a
            _______

            a) Cube                         b) Hexagon
            c) Prism                        d) Tetrahedron

61.        The general formula (RCO)2O represents
            ________

            a) An ether                    b) Ketone
            c) An ester                    d) An acid hydride

62.        ______ has the longest bond length.

            a) C = C                        b) C ≡ C
            c) C – C                        d) All of these

63.        Compounds in which two alkyl groups are
            attached to an oxygen atom are called ______

            a) Alkanes                     b) Ethers
            c) Alcohols                   d) Isomer

64.        ________ is the common name of methanol.

            a) Formaldehyde           b) Acetaldehyde
            c) Propionaldehyde       d) None of these


65.        ______ is the common name of propanone.

            a) Acetone                    b) Ketone
            c) Diethyl ketone           d) None to these

66.        The properties of organic compounds are due
            to _______

            a) Covalent bonds         b) Functional groups
            c) Ionic bonds               d) None of these

67.        ______ of the following are isomers.

            a) Methyl alcohol and dimethyl ether
            b) Ethyl alchohol and dimethyl ether
            c) Acetone and Acetaldehyde
            d) Proponoic acid and propanone

68.        Which compound contains an sp hybridized C
            atom?

            a) CH3CN                      b) CH3CHO
            c) CH3NH2                     d) None

69.        Which of the following isomeric substances
            would be expected to have the lowest boiling
            point?

            a) Hexane                     b) 2 – methlypentane
            c) 2, 2 – dimethylbutane d) 3 – methlypentane

70.        The isomers must have the same ______

            a) Structural formula      b) Molecular formula
            c) Chemical formula       d) Physical properties

You Might Also Like

0 comments:

Confused? Feel Free To Ask
Your feedback is always appreciated. We will try to reply to your queries as soon as time allows.