11how can i get the answers for the test i downloaded the test and dint submit it
90 Answers
11
1q. 54) if a substituent shows all R,I as well as hyperconjugation, then,
prefernce : resonance > hyperconjugation > inductive effect (am sure)
so acc to this,
chlorobenzene should show +R effect (coz of its lone pairs) b4 (-I ).
then the order should be 2>3>1.
plz chcek.
1q.no. 27) how can both be same..??
they have equal 'magnitude' but opp 'directions' .. isnt it?
E is vector..
11In Q60,
Cu → 4s13d10
Cu2+→ 4s03d9
It also has 4 unpaired e-. So it will have same amount of paramagnetism as Fe2+?
PLS FORGIVE ME IF I'M BLABBERING AND CORRECT ME IF I'M WRONG
READ AT YOUR OWN RISK [3]
11Oh.........I didn't know this FACT........I thought elasticity was calculated by measuring Δl for a given Fl/A......more the Δl, more the elasticity......that's what i thought...........
Thanx for the correction [1]
199.) @manish bhaiya, i have a very foolish confusion,,,,,
maxima is the point on x-axis or the value of y at that point.
if latter is true, then wat is that point on x-axis called ?
actually i had this confusion jus now.... [2]
1heyyyyyyyyy NOOO... earendil, this is FACT. steel is more elastic than rubber.. because ....
in elasticity we dun calculate the amount of Δl ...
but here we keep Δl fixed and calculate the amount of force needed to produse that Δl (provided area is constant)
11In Q34, Ysteel>Yrubber
(F/A)/(Δl/l)steel > (F/A)/(Δl/l)rubber
Thus, Δlsteel<Δlrubber
i.e rubber is more elastic than steel.
PLS FORGIVE ME IF I'M BLABBERING AND CORRECT ME IF I'M WRONG
1q. 99 ) max at x= -1 . please check.
y = x+ 1/x
=> dy/dx = 1-1/x2 = 0 (for extrema)
=> x= -1, +1
d2y/dx2= 0+ 2/x3
d2y/dx2 |x=-1 = -2 <0 => maxima
1dude. please check out that program which u use for evaluating da. coz there are many Q's in my solution where I'm correct but have received no marks or negatives. please check it out
thanks .
1yeah when there is 1 and 0 as input to the OR then it gives the output as 1.....
It is correct...
1in Q-66
the names are
hexane
2-methylpentane 3-methylpentane same C-chain
2,2-dimethylbutane 2,3-dimethylbutane same C-chain
in q-15 sorry my friend input of 0 & 0 is & 1 & 1 is 1 so if only one input is 1 then OR gate will give 1 so why it is wrong not understand [7]
11Q15
In OR gate, inputs of 1 and 1 or 0 and 0 (i don't know which[3]) will also yield 1 as the result. So OR can be eliminated :)
Q66
Can u give the structure cos i can't understand what u've written :(
1Q-15 mein OR and XOR both r correct
Q-66 chain isomer =3 position=2
Q-67 dil.KMnO4 & AgNO3 both can distinguish addition reaction of alkenes &alkynes
plz any one reply me plzzzzzzzzzzzz