2nd year test num 5. ch1+13

Test #05(ch:01  & 13)            Time allowed: 1:30hours       

Paper: Chemistry            Class: Fsc 2^nd  Year                Objective marks: 10            Total Marks:40

Student’s Name:_________________  Section______________   Roll #_______________

Note : Cutting & overwriting & ink remover is not allowed. Use only Fountain pen with Blue ink. 

B-Group encircle only first five objective from chapter 1

          (Objective)Chapter 1

Q.No.1: MULTIPLE CHOICE QUESTIONS: Encircle the correct Option.)

    1. Keeping in view the size of atoms which order is the correct one.

         a) Mg > Sr                       b) Ba > Mg               c) Lu > Ce                     d) Cl > l

    2. There are  _______ periods in Mendeleev period table.

        a)  6                                 b) 8                          c)     7                            d)      12

     3. Elements of group IV A and VB are include in a block.

     a)   s                                  b) p                         c)  d                               d)    f

     4.Second ionization energy of  element is usually ______ than first.

     a) lower                        b)  higher                   c)   equal                       d) none

     5.Group IA and IIA elements usually from________ compound.

     a)  covalent                   b) ionic                    c)  amphoteric                d)  none

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   6) Which of the following elements have higher melting point?                                                                  

      a) K                                   b) Br₂                        c) Mg                          d) O₂                                      

    7) The law of octaves was introduced by 

       a) Newland                          b) Moseley              c) Mendeleev               d) Al- Razi       

    8) Modern periodic table is based on ____________.

       a) atomic mass                     b) atomic volume   c) density                    d) atomic number    

     9) Which of the following elements forms a polymeric halide.

        a) Cs                                   b) Be                         c) Si                           d) P

    10) The hydrides of group IA are

         a) ionic                               b) interstitial             c) covalent                             d) metallic

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Chapter 13 objective for B-group

    1) The acids which do not contain-COOH group are   

       a) Ethanoic acid                    B) p-Toluene sulphonic acid       c) Palmitic acid          d) Lactic acid

    2) Vinegar contains acetic acid nearly            

       a) 20%                    b) 20-15%                      c) 6-10%              d) 30%                                                                                                                            

.   3) Ascorbic acid is                                                                                                                                      

      a) ester                          b) protein              c) Vitamin C                        d) enzyme        

      4)In amino acids both amino and carboxyl group are attached ……….carbon

        a) α                          b) β                        c)    γ                        d)  all  

     5) Boiling point of acetic acid is…………º C 

         a ) 119                                      b) 118                               c) 120                             d) none   

………………………………………………………………………………………………………………………………………………………………

                                                                                                                                                                                                                                                                       

Test #05(ch:01  & 13 )            Time allowed: 1:30hours       

Paper: Chemistry            Class: Fsc 2^nd  Year                Subective marks: 30            Total Marks:40

Student’s Name:_________________  Section______________                              Roll #_______________

Note : Cutting & overwriting & ink remover is not allowed. Use only Fountain pen with Blue ink. 

Chapter 01: Group B attempt only 6 Short from chapter 1.

Q.no2. Write SHORT Answers of following QUESTIONS:                               (2x11=22)

1) Why diamond is non-conductor while graphite is a good conductor.                  

2) What is meant by shielding effect?

3) What is meant by Lanthanide contraction?

4)How do you  justify that ZnO is amphoteric in nature.

5) Why Na₂O is basic while P₂O₅ is acidic in character?                                                

 6) What are the drawbacks in Mendeleev’s periodic table?

  7) What are Basic oxides?

  8)What is the Law of octaves?

  9) Why cationic radius is smaller than parent atom ?

 10) what are metals and metalloids?

11)what is law of triad? Give example.

Chapter 13 for B-Group only.

1) What are acidic and basic amino acids?

2) Convert acetic acid into acetone?

3) What is streckers synthesis

4) What is ninhydrin test?

5) why the solubility of carboxlic acid decrease by increasing chain length?

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Q.no3 EXTENSIVE QUESTIONS:                                             (4+4)

     

a)    Write  note on Position of Hydrogen.               

  b) Write a  note on modern periodic table.

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