Some Basic questions on Alkanes

20 Answers

24
eureka123 ·

2)
3° radical is more stable naa.....so answer should be b

1
Arshad ~Died~ ·

lolz.....alkanies are yummy.....gr8
wats happening....!!!

24
eureka123 ·

sorry...
3° radical + max hyperconjugation in b)

so b) is ans

3
msp ·

yes sir i agree that there were six levels,i thot of relative heights of minima so i guessed it shud be d,

1357
Manish Shankar ·

Best Bet is (a) because for that 4 energy levels are possible.

For (b) and (c) 2 energy levels are possible

For(d) 6 energy levels are possible.

106
Asish Mahapatra ·

is it (a) because a lot of H-bonding is ther which makes the given str more stable while rotation would decrease stability as H-bonding would be reduced??

not done perfectly but first look

1357
Manish Shankar ·

nopes, not D

3
msp ·

q1) is dat d sir.

1357
Manish Shankar ·

But in (b) there will be 7 hyperconjugation forms which is greatest from others.

106
Asish Mahapatra ·

there are many other 3° radicals that can be formed naa??

1
Arshad ~Died~ ·

3-c

106
Asish Mahapatra ·

yes then it is (b) but if we apply these values then wat??

1357
Manish Shankar ·

Think in terms of hyperconjugation!

106
Asish Mahapatra ·

why sir (b) pls see #5 regarding that.

isnt 2° abstraction = 3.8 and as there 2 H... it should be 7.6...
while for 3° it is 1 but only 1 H is there

1357
Manish Shankar ·

For second, think which of the intermediate radical will be most stable?

1357
Manish Shankar ·

Yes Eureka 2 is (b)

106
Asish Mahapatra ·

3-(d)

1,1 dichloro butane
2,2 dichloro butane
1,2 dichloro butane
1,3 " " "
1,4
2,3

106
Asish Mahapatra ·

manish sir, shouldnt 2 be all the three types of mono chloro formed by the replacement of H on secondary carbons on the cyclopentane ring?

24
eureka123 ·

2 b

1357
Manish Shankar ·

Not C

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