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Sunday, November 29, 2015







S.B. Roll No……….
APPLIED CHEMISTRY-I
1st Exam/Common/0451/5404/Dec’11

Duration : 2½ Hrs                                                                                   M. Marks: 75

1.     Which of the following is not one of the seven fundamental unites?
a)       Kilogram                                                     b)      Candela               
c)       Mole                                                            d)      Watt
2.     1 calorie = ……………………….joules
a)       4.2                                                               b)      4.8
c)       4.6                                                               d)      4.9
3.     Freezing point of water at 1 atm Pressure of Kevin scale is
a)       0.K                                                              b)      1K
c)       -273 K                                                         d)      + 273 K
4.     Which of the following is not an element?
a)       Diamond                                                     b)      Graphite
c)       Ozone                                                          d)      Sand
5.     Which of the following is a metalloid?
     a)       Antimony                                                    b)      aluminium
     c)       copper                                                         d)      silver
6.     Which has the maximum viscosity?
a)       Water                                                                    b)      glycol
c)       acetone                                                        d)      ethanol
7.     The charge on a cation M is + 2 and on anion A is -3. The compound formed has the formula
a)       MA2                                                            b)      M2 A3         
c)       M3 A2                                                           d)      M2 A
8.      NaCl is a chemical formula of:
a)       washing soda                                              b)      baking soda
c)       sugar                                                           d)      common salt
9.     Which is the following has the largest number of atoms?
a)       0.5 g atom of C.                                          b)      .5 g of C
c)       0.25 mole of C                                            d)      1 g of C      
10.                        Mass of 0.40 moles of CO2 is
a)       40g                                                              b)      44g
c)       17.6g                                                           d)      12.6g
11.                        1 a.m.u. is mass of:
a)       1 atom of C                                                 b)      12 atoms of C
c)       1/12th                                                                                                 c)       6.022x1023
12.                        Mass of 0.1 mole of CaCO3 is
a)       1 g atom of C                                              b)      12 atoms of C
c)       1/12 th  of atom                                            c)       6.022x10 23  atoms of C
13.                        Neutrons are present in all atoms except                               
a)       He                                                               b)        C
c)       H                                                                 d )     Ne
14. The designation of an orbital with n=4 and I=3 is
a)       4s                                                                         b)        2p
c)       4d                                                                c)         4f
15.   The lightest particle  among  the  following  is
a)       proton                                                         b)       neutron     
c)       electron                                                        d)      atom of  hydrogen
16.   A pier bond is formed by the overlapping of
    a)       S-s orbital                                                   b)      s-p orbital
    c)       p-p                                                              d)      d-d orbital
17.   Series of lines presents in visible region  of  Hydrogen spectrum is
          a)       Lyman                                                         b)      Balmer
    c)       paschen                                                      d)       brackett
18.   As we move  away  from  nucleus, the energy of  shell
    a)       Decreases                                                    b)      increases
    c)       remains                                                       d)      neither decreases nor
19.   Which of  the following noble gases has lowest atomic number  
    a)       Ne                                                               b)      He
    c)       Kr                                                               d)      Xe
20.   The shape of 2s orbital is
    a)       Dumbbell                                                    b)      Tetrahedral
    c)       pyramidal                                                              d)      spherical
21.   If  the mass of an atom is 90 and number of  neutrons is 50 its atomic number is
    a)       40                                                               b)      50
    c)       90                                                               d)        140
22.   The quantum number  representing shapes of  the electron  cloud  is
              a)       n                                                        b)         l
             c)       m                                                        d)         s
23.    The size of  the nucleus of an atom is  of the order of
              a)       10-8                                                                                     b)      10-13­
             c)       10-4                                                   d)       10-6
24.    The  charge on the electron was found  by
             a)       j.j.Thomsan                                       b)      miliken
             c)       Faraday.                                            d)       goldstein
25.    The number of elements present in the 3rd pried is
             a)       6                                                        b)      18
             c)       32                                                      d)      8
  26.    Every period in the periodic table ends with
             a)       An alkali                                           b)      a halogen
             c)       an inert gas                                                 d)      a transition element
27.    the element with atomic number 26 will found in the group
             a)       4                                                        b)      6
             c)       8                                                        d)      10
28.   The total number of actinides in the period table are
             a)       12                                                      b)      13
             c)       14                                                      d)      15
29.    The elements of group 16 in periodic table are known as  
             a)       Alkali metals                                     b)      alkaline earth
             c)       chalcogens                                                  d)      halogens
30.    Halogens belongs to 
             a)       p- block                                             b)      s- block
             c)       d- block                                             d)      f- block
31.    In the periodic table, the position of the elements still uncertain is of 
             a)       He                                                      b)      H
             c)       Li                                                       d)      C
32.    The purest form of water obtained from the element sources is : 
             a)       Spring water                                               b)      rainwater
             c)       Sea water                                          d)      lake water
33.    Temporary hardness of water is due to presence of calcium and magnesium
             a)       Chlorides                                           b)      Sulphates
             c)       Bicarbonates                                     d)      Nitrates
34.    The process of destroying the disease producing bacteria or micro-organisms  from              water is known as  
             a)       aeration                                             b)      sedimentation
             c)       coagulation                                                 d)      disinfection
35.    Permanent hardness is due to the presence of Ca and Mg as
             a)       carbonate only                                  b)      bicarbonates  only
             c)       chloride only                                     d)      chlorides and sulphates
36.    Permanent hardness can be removed by adding 
             a)       CI2                                                    b)     Na2CO3
             c)       Bleaching  powder                            d)      KMnO4
37.   The element name of permutit is: 
             a)       Potassium zeolite                              b)      sodium zeolite
             c)       calcium zeolite                                   d)      magnesium zeolite
38.    Hardness can be estimated
             a)       Clark’s method                                 b)      soap titration method
             c)       EDTA method                                   d)      both b and c
39.    On boiling water becomes free from 
             a)       Permanent hardness                          b)      temporary hardness
             c)       suspended impurities                        d)      floating impurities        
40.    Exhausted permutit is regenerated by washing it with   
             a)       NaCI                                                           b)      NaOH
             c)       HCl                                                   d)      KOH
41.    The temporary hardness of water due to calcium bicarbonates can be removed by: 
             a)       Bleaching powder                              b)     Sodium carbonate
             c)       Chlorine                                            d)      Potassium carbonate
42.   In hot soda lime process, temporary hardness of water can be removed by 
             a)       Lime                                                  b)      Magnesium hydroxide
             c)       Fine sand layer                                  d)      Coarse sand layer
43.    The process of removing extra common salt from water is called:
             a)       De-ionization                                     b)      Desalination
             c)       Disinfection                                                 d)      Softening
44.    Coagulants help in setting of:
             a)       Colloidal particles only                     b)      Fine Suspended impurities     
             c)       Suspended impurities only                d)      Both a and c
45.    A law which governs the effect of conc. On the rate of reaction is called   
             a)       Dalton law                                         b)      Le-chatelier’s principle
             c)       Law of chem. equilibriul                              d)      Law of mass action
46.    Theory of ionization was given by:
             a)       Bohr                                                  b)      Arrhenius
             c)       Rutherford                                         d)      Newton
47.    The conjugate acid of NH2- is 
             a)       NH3                                                   b)     NH2OH
             c)       NH4                                                   d)      N2H4
48.   Ionic product of water changes when 
             a)       An acid is added to water                          
             b)      A base is added to water
             c)       both acid and base are added to water                          
             d)      temp. is changed
49.    A buffer mixture of ammonium chloride and ammonium hydroxide is diluted with water, its pH will
             a)       Increases                                            b)      remains the same
             c)       decreases                                            d)      becomes 7
50.      Buffer action of a buffer is due to:
             a)       Association                                                 b)      common ion effect
             c)       dissociation                                       d)      heat production   
51.    The indicator used in titration of strong acid and strong base is    
             a)       litmus                                                b)      methyl orange
             c)       phenolphathalein                              d)      methyl red

52.    HCL is stronger acid than acetic acid because
             a)       It can neutralize large quantity of alkali.                         
             b)      it can corrode anything it comes in contact
             c)       it ionizes completely to ions in aqueous soln.                                  
             d)      none of these
53.   Hydrolysis of sodium acetate will give: 
             a)       Basic soln.                                         b)      acidic soln.
             c)       neutral soln.                                                d)      normal soln.
54.   Anaqueous soln. whose pH is O is:
              a)       Alkaline                                             b)      acidic
             c)       neutral                                               d)      amphoteric
55.   Strong electrolytes are those which:
             a)       Dissolve readily in water                            b)      conduct electricity         
             c)       dissociate into ions at high dilution  d)      can not dissociate into ions
56.    The unit of electrochemical equivalent is:   
             a)       Gram                                                b)      gram/ampere
             c)       gram/coulombs                                 d)      coulombs/gram
57.    One Faraday is equal to 
             a)       9650 coulombs                                 b)      9650 coulombs             
c)       39650 coulombs                               d)      39650 coulombs
58.   On electrolysis is of dil, H2SO4 soln. between platinum electrodes, this gas evolved at the anode is
             a)O2                                                            b)SO2         
             c)H2                                                             d)SO2         
59.    Which of the following battery is rechargeable?
             a)       Dry cell                                              b)      mercury cell
             c)       Ni-Cd cell                                          d)      H2-O2 cell
60.      In electrolytic refining metal to be purified is made as:
             a)       Anode                                                b)      cathode
             c)       neutral                                               d)      none 
61.    Reducing agent is a substance which can     
             a)       Accept electrons                                b)      accept protons
             c)       donate electrons                                d)      donate protons
62.    E.C.E is more for
             a) Hydrogen                                                        b) copper                      
c) zinc                                                          d) silver     
63.   During electrolysis, all ions 
             a)       Move in the same direction                                 
b)      move towards oppositely charged electrode
             c)remains stationary                                            
d)      none of these
64.   Electric current is the flow of   
             a)       Ions                                                   b)      atoms
             c)       electrons                                            d)      none of these
65.   When aqueous sodium chloride is a electro lysed, the product obtained at the cathode is
             a)       Hydrogen                                          b)      chlorine      
             c)       sodium metal                                     d)      redox reaction
66.    The reactions in which oxidation and reduction go side by side are called   
              a)       Oxidation reaction                                      b)      reduction reaction
             c)       redox reaction                                   d)      exothermic reaction

67.    In the electroplating of metals, anode is made up of     
             a)       Pure metal                                         b)      impure metal
             c)       both a and b                                      d)      electrolyte
68.    Tetravalency of carbon can be explained by 
             a) Resonance                                               b) hybridization                      
c) inductive effect                                        d)none of these    
69.   Graphic is used as electrodes because ‘it has the property of: 
             a)       Good conduction of electricity                            
b)      Bad conduction of electricity
             c)       Metallic lustre                                            
d)      none of these
       70.  The property of self linking of carbon atoms is known as
a)       Catenation                                        b)      polymerization
             c)       carbonization                                    d)      none of these
71.  The common name of  H2CCOOH is:  
a)       Formic acid                                       b)      acetic acid  
             c)       carbonic acid                                     d)      none of these
72.    Hydrocarbons containing triple bonds are known as:   
             a)       Alkanes                                             b)      alkenes
             c)       alkyness                                            d)      none of these
73.  Cyanides are also known as         
a)       Alkane nitriles                                   b)      imines
c)       amines                                               d)      amides
74.  The organic compound present in vinegar is:  
a)       Ethanoic acid                                    b)      propanoic acid    
             c)       methanoic acid                                  d)      butanoic acid
75.    The aromatic smell of flowers is due to the presence of:   
             a)       Alcohols                                            b)      acids

             c)       esters                                                 d)      amines

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