1.  In vulcanisation, the formation of sulphur bridges between different chains make rubber harder and stronger

2.  Natural rubber has the trans-configuration at every double bond

3.  Buna-S is a copolymer of butadiene and styrene

4.  Natural rubber is a 1, 4-polymer of isoprene

4
Correct Answer :

Natural rubber has the trans-configuration at every double bond


Explanation :
No Explanation available for this question

1.  1 sigma and 2 pi bonds

2.  2 sigma and 2 pi bonds

3.  1 sigma and 1 pi bonds

4.  2 sigma and 1 pi bonds

4
Correct Answer :

2 sigma and 1 pi bonds


Explanation :
No Explanation available for this question

1.  

2.  

3.  

4.  

4
Correct Answer :


Explanation :
No Explanation available for this question

1.  nitrobenzene

2.  nitromethane

3.  methylamine

4.  Aniline

4
Correct Answer :

nitrobenzene


Explanation :
No Explanation available for this question

1.  2.11 x 10-4 M

2.  3.7 x 10-4 M

3.  2.7 x 10-3 M

4.  1.11 x 10-3 M

4
Correct Answer :

3.7 x 10-4 M


Explanation :
No Explanation available for this question

1.  2 times

2.  32 times

3.  64 times

4.  4 times

4
Correct Answer :

64 times


Explanation :
No Explanation available for this question

1.  1500 K

2.  (2000/2.303) K

3.  2500 K

4.  (1000/2.303) K

4
Correct Answer :

(1000/2.303) K


Explanation :
No Explanation available for this question

1.  

2.  

3.  

4.  

4
Correct Answer :


Explanation :
No Explanation available for this question

1.  9.0 x 10-23 cm3

2.  6.023 x 10-23 cm3

3.  3.0 x 10-23 cm3

4.  12.5 x 10-23 cm3

4
Correct Answer :

3.0 x 10-23 cm3


Explanation :
No Explanation available for this question

1.  CH3O

2.  CH2O

3.  CHO

4.  CH4O

4
Correct Answer :

CH3O


Explanation :
No Explanation available for this question

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