Showing posts with label 2nd year. Show all posts
Showing posts with label 2nd year. Show all posts

Sunday, 2 April 2017

2nd year result 2017 of Punjab Board

2nd yearInter result 2016 will be announced soon.The expected date of result of second (2nd) year predicted to be 17 September 2016 while the result of  1st year will be announced on 10 October 2016.
The result of all boards in Punjab will be announced on their respective official sites.If you want to know your result through email,simply comment below mentioning your roll number and respective board.
As soon as the result will come out,we will share your result with you.You will also be able to check your result of FSC part 1 by simply entering you number after the form is provided like this:
1st year result
The same will be procedure for second year result.
So simply stay connected with NUSTweb.com to get news of result date and also result when it will be announced.
You can also find plenty of material for preparation of inter exams.Simply look into the sidebar of site to get helping material for free. 
You can also browse all 2nd year helping material
You can also find practice MCQs and past papers for almost all entry tests conducted in Pakistan.Request us anything in comments if it should be present here.  
We will keep an eye on result of all boards mentioned below.
1 BISE  Attock 

2 BISE Kasur 

3 BISE Okara 


4 BISE Bahawalnagar 

5 BISE Khanewal 

6 BISE Pakpattan 


7 BISE Bahawalpur 

8 BISE Khushab 

9 BISE Rahim Yar Khan 


10 BISE Bhakkar 

11 BISE Lahore 

12 BISE Rajanpur 


13 BISE Chakwal 

14 BISE Layyah 



16 BISE Dera Ghazi Khan 

17 BISE Lodhran 

18 BISE Sahiwal 


19 BISE Faisalabad 

20 BISE Mandi Bahauddin 

21 BISE Sargodha 


22 BISE Gujranwala 

23 BISE Mianwali 

24 BISE Sheikhupura 


25 BISE Gujrat 

26 BISE Multan 

27 BISE Sialkot 


28 BISE Hafizabad 

29 BISE Muzaffargarh 

30 BISE Toba Tek Singh 

31 BISE Jhang 

32 BISE Nankana Sahib 

33 BISE Vehari 

34 BISE Jhelum 

35 BISE Narowal 
Share knowledge with your others and don't forget to comment below.Happy holidays!
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Sunday, 4 September 2016

Chapter 12 Aldehydes and Ketones MCQs

Aldehydes and Ketones solved MCQs practice

12Make your choice.

21.    Aldehyeles having -hydrogen atoms undergo                  reaction.
(a)     Wurtz                   (b)     Aldol           (c)     Cannizzaro          (d)
         Fehling
22.                                                     The example of Halo form is
(a) Chloroform    (b)  Bromo form (c)  Idoform          (d)  All of them
23. In Pakistan, ethanol is prepared by the fermentation of
(a)  Molasses     (b)  Starch grains (c)  Fruit juices   (d)  All of them
24. The residue obtained after the crystallization of sugar from conc. Sugarcane juice is called.
(a)  Enzyme                 (b)  Starch           (c)  Diastase                  (d)
Molasses
25.                                                                Alcohols can be obtained by the
_______ of alkenes.
(a) Hydrogenation        (b)  Hydration      (c)  Halogenation (d)  None of them
26. Oxidation of alcohols convert them into
(a)      Aldehycle (b)     Ketones     (c)     Acids          (d) Both a & b
27.    The best reagent for the oxidation of alcohol is
(a)  ZnCl2                     (b)  Ether             (c)  Acidic dichromate (d)  Pyridine
28. __________ alcohols are resistant to oxidation.
(a)  Primary                  (b)  Secondary    (c)  Tertiary         (d)  Long chain
29. _________ gives iodoform with iodine in the presence of NaOH.
(a)  Methanol      (b)  Ethanol                  (c)  Propanol       (d) Butonol
30.    Phenol reacts with acetyl chloride in the presence of a base to form
(a)  Acid              (b)  Alkane          (c)  Aldehyde      (d)  Ester
31.    Aqueous solution of phenol reacts with bromine water to give precipitate of 2, 4, 6 tribromophenol.
(a)  White            (b)  Yellow 
(c)  Blue              (d)  Green
32.
The IUPAC name of CH3OC6His 
(a)  Methoxy methane
(b)  Methoxy ethane
(c)  Ethoxy propane
(d)  Methoxy benzene
33.
The halo form’s reaction using iodine
and aqueous _______ is called the idoform test
(a)   Sod – chloride                                             (b)  Sod – carbonate
aldehyde
Aldehyde functional group
(c)     Sod – hydroxide                                        (d)  Sod - bicarbonate
34.                                                     Idoform is a ________ solid.
(a)  White            (b)  Black             (c)  Yellow                    (d)  Blue
35.    The catalyst used for the catalytic reduction of aldehydes and ketones.
(a)  Pd                  (b)  Pt                             (c)  Ni                             (d)  All of them
36. Aldehydes combine with alcohols in the presence of _________ gas to form acetals.
(a)  Hydrogen     (b)  Carbon dioxide  (c)  Hydrogen chloride    (d)  Chlorine
37. Aldehycles and ketones are easily oxidized by mild oxidizing agents like.
(a)  Tollen’s reagent                       (b)  Fehling’s solution
(c)  Benedict’s solution                   (d)  All of them
38.    An alkaline solution containing a cupric tartarate complex ion is called.

(a) Fehling’s solution
(b) Benedict’s solution
(c)  Tollen’s reagent
(d)  DNPH
39.
test.
Aldehydes do not give ___________
(a)  Fehling’s solution
(b)  Benedict’s solution
(c)  Sod – nitroprusside
(d)  I do form
40.
of antipoliovaccine.
(a)  Formaldehyde
 _________ is used in the processing
(b)  Acetaldehyde         
(c)  Ether             (d)  Propanone 
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Saturday, 3 September 2016

Chapter 11 Alcohol Phenol and ether solved MCQs

Alcohol Phenol and ether 2nd year


Choose the correct MCQs.(Red colored choice is correct one)

2. Which of the following can be used as hypnotic drugs?
(a)  Chloral hydrate     (b)  Ethanol tri-mer        (c)  Ethanol tetra-mer  (d)
Both a & b
3. ___________ is used as a slug poison.
(a)  Chloral hydrate  (b)  Ethanol trimer (c)  Ethanol tetramer (d)  None of them
chapter 114. Bakelite is a
(a)  Drug                        (b)  Resin (c)  Plastic                     (d)  Antiseptic
5.  Formalin  is used as
(a)  Antiseptic               (b)  Disinfectant (c)  Germicide     (d)  All of them
6. Urotropine is used as
(a)  Resin   (b)  Poison                    (c)  Urinary antiseptic (d) 
Flourishing agent
7. Formamint is made by
(a) Formaldehyde       (b)  Lactose        (c)  Formaldehyde + Lactose (d) 
None of them
8. Williamson’s synthesis is used to prepare
(a)  Diethylether (b)  Phenolphthalein    (c)  Hydrogenation       (d) 
Bakelite
9. The maltose in the presence of yeast or maltasee gives.
(a)  Fructose                (b)  Glucose                 (c)  Lignin            (d)  Alcohol
10.    All of the following would give ethyl alcohol on fermentation except.
(a)  Molasses  (b)  Starch grain (c)  Fruit juices (d)  Cholesterol 11. Mathanol is also called as __________ spirit.
(a)     Leaf            (b)     Root           (c)     Wood                   (d)     Flower
12.    Ethanol is prepared on industrial scale world over, by the process of
(a)  Fermentation (b)  Alkylation    (c)  Acylation      (d)  Hydration
phenol
Phenol
13. Ethers are prepared from ________ either directly or indirectly.
(a)  Alkanes                 (b)  Alkenes                  (c)  Alcohols        (d)  Acids
ether
Ether
14. Primary, secondary and tertiary alcohols can be distinguished by _________ test.
(a) Grignard                 (b)  Dow              (c)  Perry             (d)  Lucas
15.    The aldehyde group is present in most of the                               
(a)  Salt               (b)  Woods          (c)  Rocks            (d)  Sugars
16. If the two alkyl groups in a ketone are the same, the ketone is said to be
(a)  Straight                  (b)  Symmetrical (c)  Same            (d)
Unsymmetrical
17. Ketones are obtained by the oxidation of ________ alcohols.
(a)     Primary      (b)     Secondary (c)     Tertiary      (d)     Long chain
18.    ___________ is a mixture of 40% formaldehyde, 8% methyl alcohol and 52% water.
(a)      Asbestos (b)      Pyridine
(c)     Formalin    (d)     Acetone
19.
reaction of 
 A cynohydrin is formed by the
(a)    Alcohol and HCN        
(b)    Aldehyde and HCN
(c)     Keone and NH3             
(d)     None of them 
20.
strongest reducing agent?
Which one of the following is the
(a)      C2H5CHO (b)     C3H6 
(c)     Ketone and HNH3        (d) 
CH3COCH3 
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Friday, 19 August 2016

Chapter 10 Alkyl halides important MCQs


FSC part 2 Chemistry book Alkyl halides 


chapter 10
15.               SN2 reactions can be best carried out with:
(a)    Primary alkyl halides                (b)    Secondary alkyl halides
(c)   Tertiary alkyl halides  (d) All the three 26. Elimination bimolecular reactions involve: 
(a)  1st order kinetics (b)  2nd order kinetics 
(c)  3rd order kinetics (d)  Zero order kinetics
27.               In β – elimination reaction, nucleophile attacks on
(a)    - Hydrogen    (b)  β – Hydrogen       
        (c)  Carbon               (d)  None of these
28.               Which one of the following is most stable
(a)    Primary carbonium ion             (b)  Sec – carbonium ion
        (c)  Ter – carbonium ion                     (d)  None of them
29.               Alkyl magnesium halide when hydrolysed by water yields
(a)    Alkanes         (b)  Alkene                (c)  Alkyne (d)  Alkyl halide
30.               Tertiary alcohols are obtained by treating Grignard reagent with
(a)    Aldehydes       (b)  Ketones              (c)  Water         (d)  Chloramine
31.               An alkyl halide may be converted to alcohol by
(a)    Addition                 (b)  Substitution 
(c)  Dehydrohalogenation (d)  Elimination
32.               Which substance is used to convert Grignard reagent to alkane 
(a)    H2O                (b)  NH3                  (c)  Ethyl alcohol       (d)  All of these
33.               Benzene cannot undergo
(a)    Substitution reactions      (b)  Addition reactions
        (c)  Oxidation reactions              (d)  Elimination reactions
34.               Benzene ring acts as a source of
(a)    Protons           (b) Neutrons     (c)  Electrons    (d)  None of them
35.               Which compound is most reactive one?
(a)    Benzene                 (b)  Ethene               (c)  Ethane        (d)  Ethyne
36.               Aromatic compounds burn with sooty flame because
(a)    They have high % age of hydrogen (b)  They have ring structure
        (c)  They have high % age of carbon           (d)  They resist reaction with air
37.               _____________ alkyl halides follow both SN1 and SN2 mechanisms
(a)    Primary           (b)  Secondary          (c)  Tertiary               (d)  Cyclic
Alkyl halides
38.               The formula for sodium lead alloy is
(a)    NaPb       (b)  NaPb4              (c)  Na2Pb         (d)  Na4Pb
39.               The general formula form alkyl halides is 
(a)    CnH2nX            (b)  CnH2n+1X             (c)  CnHnX         (d)  CnH2n+2X
40.               When CO2 is made to react with C2H5 Mg I followed by acid hydrolysis, the product formed is 
(a) Propane  (b)  Propanoic acid 
        (c)  Proponal             (d)  Peoponol


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Thursday, 18 August 2016

Chapter 9 Aromatic Hydrocarbons

2nd year chemistry chapter 8 importnat MCQs

chapter 9
Choices written in red are correct answers.
1.   The – CH3 group is:
(a)    Ortho directing only         (b)  Meta directing only
        (c)  Para directing only               (d)  Both ortho and para directing
2.   Toluene undergoes oxidation with hot acidic KMnO4 to form:
(a)    Benzoic acid    (b)  Benzyl alcohol      
(c)  Benzyl chloride (d)  Benazldehycle
3.   Benzene reacts with chlorine in the presence of FeCl3 to form: 
(a)    m – dichlorobenzene (b)  Chlorobenzene  (c)  Benzyl chloricle  (d)  Hexachlorobenzene 
4.   The – COOH group in benzoic acid is:
(a)    Both ortho & para directing      (b)  Ortho directing only
        (c)  Meta directing only                      (d)  Para directing only
5.   Bakelite is obtained from phenol by reacting with:
(a)    Acetaldehyde         (b)  Acetal          
        (c)  Formaldehyde             (d) Chlorobenzene
6.   Which of the following generally have low carbon to hydrogen ratio
(a)    Alkane            (b)  Aromatic hydrocarbons         
        (c)  Alkene               (d)  Alkyne
7.   Nitration Of Benzene is a
(a)    Nucleophilic substitution reaction (b) Electrophilic substitution reaction (c)   Electrophilic addition  (d) Nucleophilic ad-
dition reaction
8.   The carbon atoms in benzene are:
(a)    Sp3 hybridized    (b) Sp2 hybridized    
(c)  Sp hybridized      (d)  Non of them 9. The total no. of sigma bonds in benzene are:
        (a) 6                 (b) 12                       (c) 18                       (d) 3
10.               The pi () molecular orbital in benzene contains
(a)        2 electrons    (b)  4 es            (c)  6 es            (d)  3 es
11.               The C – C bond angles in benzene are
(a)        120o                    (b)  90o                               (c)  109.2          (d) 180o
12.               Two adjacent substituents on benzene ring is said to be (a)  Ortho to one another   (b)  Meta to one another
        (c)  Para to one another                     (d)  None of the above
13.               Benzene reacts with a mixture of conc. HNO3 + H2SO4 to form:
(a)        Phenol         (b)  Benzene sulphonic acid        
        (c)  Nitrobenzene      (d)  Toluene
14.               Aromatic hydrocarbons are also called
(a)        Benzene               (b)    Arenes               
        (c)    Cyclic compound       (d)    None of the above
15.               The attacking species in aromatic substitution reaction is:
(a)    a nucleophile           (b)  An electrophile     
        (c)  a free – radical            (d)  None of the above
16.               Benzene reacts with methyl chloride in the presence of AlCl3 to form:
(a)    Toluene                 (b)  Chloro benzene 
(c)  n – dichloro benzene  (d)  Nitrobenzene
17.               What happens when phenol is distilled with Zn dust:
(a)    Benzene is formed                 (b)  Toluene is formed                
        (c)  Acetylene is formed                     (d)  None of the above
18.               Which does not have a carboxyl group?
(a)    Benzoic acid            (b)  Ethanoic acid       
        (c)  Picric acid                   (d)  Methanoic acid
19.               Grignard reagent is reactive due to
(a)    The presence of halogen atom                 (b)    The presence of Mg atom
        (c)   The polarity of C – Mg bond        (d)    None of the above
20.               The active species involved in nitration of benzene is 
(a)    NO+                        (b)  NO2                  (c)  NO2+    (d)  NO3-1 
21.               Benzophenone is called
(a)    Diphenylketone                (b)  Diethyl ketone
        (c)  Methyl phenyl ketone           (d)  Biphenyl
22.               Benzene normally shows __________ reactions
(a)    Addition         (b)  Substitution
        (c)  Limiting                               (d)  Elimination
23.               Which is called soda lime
(a)    NaOH             (b)  CaO
        (c)  NaOH + CaO                      (d)  Na2CO 
24.               The conversion of n – hexane into benzene by heating in the presence of pt is called

(a)    Isomerization         (b)  Aromatization (c)  Dealkylation             (d)  Rearrangement 
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