phase test 5

results kahaan hain ? kisiko mila ? bolo .

63 Answers

1
rahul wadhwani ·

wat abt q-27

11
Subash ·

bhaiyya please look at 49

21
tapanmast Vora ·

Sir how can we prepare propane by WURTZ???

Isnt it that only even carbon atomed hydrocarbons only can b prepared???

62
Lokesh Verma ·

results will be given "after" tommorow!!! This one started late if u guys remember correctly! :O

1
skygirl ·

bhaiya! u told test is 'till' friday ??

mereko phir abhi deni hai .....

jaldi jaldi batao.....

11
Subash ·

upto what time will the test be available

62
Lokesh Verma ·

It is till full friday...

Sorry after being pestered by so many ppl i myself forgot....

1
skygirl ·

[2]

11
Subash ·

sry if im pestering u again

but it will be available till 12PM tomrow or what

im thinking of taking it tom evening after school thats why

62
Lokesh Verma ·

It will be available for the whole day till mid night...

So nothing to worry

1357
Manish Shankar ·

part test 5 results out

discuss here

9
Celestine preetham ·

Q17 ans shud be 10 cos A= d2/2

more dbtss comin right up .......;)

9
Celestine preetham ·

70)CH3CH(OH)CH2 shud be actually 70)CH3CH(OH)CH3

1357
Manish Shankar ·

yes noted

9
Celestine preetham ·

69) cant ans be b,a excuse me if im wrong ;)

9
Celestine preetham ·

a gives alkyne thats reduced by b

uve deleted ur post ? ;)

1357
Manish Shankar ·

Yeah it can be but that will be two step process

1357
Manish Shankar ·

I clicked on delete instead of edit in that post :P

1
rahul wadhwani ·

not found is liye pareshanho rahan hoon

1
prateek punj ·

not really....
wurtz reaction between two haloalkanes having different number of carbon atoms can also be done but it will give a variety of products....

21
tapanmast Vora ·

ya so the yield isnt satisfactory and separatn is difficult that was wat i thot!!!

NEWAYS frm now on if it cums in a test i shud go for propane(mixed wurtz) as well rite!!

1
prateek punj ·

yes u can.....

if any other satisfactory answer is not there....

21
tapanmast Vora ·

HAD A SIMILAR DOUBT IN
Q53 The total no. of structural isomeric alcohols with formula C3H5OH is

prop-1-en-1-ol && prop-1-en-2-ol always occur as propanal & propanone (98%)

so dont v consider totomerism while countin total no of isomers???????

9
Celestine preetham ·

6) 3/2 is also valid option

7) ans cums to be rt13

16) shud be a

17) shud be 10

27) actually C is in series , none of options r right

31) Your Answer : doesnt match with ans i posted

41) option a is correct while solvin uve taken lenght L instead of L/2

49) i think this was a prev iit q and sol given was a cos of eq concept

55) shudnt ans be ab cos even a strong alc Koh rxn is feasible though slow

56) also c2h4 cant be prep

59) m-directing can also exclusively dactivte op pos wen it has +I,-R

62) can u explain why i dint understand;(

63) ans is d cos its less acidic due to hbonding pka walues are evidence

64) only a is correct but 2 options r gvn to be correct?

9
Celestine preetham ·

excuse me if im wrong and im awiting ur reply bhaiyyas ;)

1
prateek punj ·

bhaiya in Q53....
the answers prop-1-en-2-ol ,prop-2-en-1-ol....

wat is the difference between the two....

1
prateek punj ·

i too agree in Q56-C2H4 cann't be prepared...

21
tapanmast Vora ·

Q17 The two opposite coordinates of a square is A(1,2) and C(3,6)

Area of the square is
Your Answer: 10
Correct Answer: 20

(Diagonal)2 = (6-2)2 + (3-1)2 = 20 = 2*a2 (wer a is side length)

area of sq = a2 = 20/2 = 10

PLZ correct me, if im wrong!!!!!!!

1357
Manish Shankar ·

this much mistakes :(

we will see to it celestine

1
prateek punj ·

In ques 17 answer should be 10....

and bhaiya in many of my multiple choice question my marks had been deducted....

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