NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXII15:POLYMERS
325165
Heating of rubber with sulphur is known as
1 Galvanisation
2 Sulphonation
3 Vulcanisation
4 Bessemerisation
Explanation:
Conceptual Questions
CHXII15:POLYMERS
325166
Vulcanised rubber resists
1 wear and tear due to friction
2 cryogenic temperature
3 high temperature
4 action of acids
Explanation:
Vulcanised rubber resists wear and tear due to friction.
CHXII15:POLYMERS
325167
How many isoprene units are present in abscisic acid?
1 Three
2 Two
3 Four
4 Five
Explanation:
Abscisic acid with molecular formula \({{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{20}}}}{{\rm{O}}_{\rm{4}}}\) is composed of three isoprene units. The sturcture of abscisic acid is shown below:
CHXII15:POLYMERS
325168
Natural rubber and gutta-percha rubber, respectively are
Vulcanised rubber resists wear and tear due to friction.
CHXII15:POLYMERS
325167
How many isoprene units are present in abscisic acid?
1 Three
2 Two
3 Four
4 Five
Explanation:
Abscisic acid with molecular formula \({{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{20}}}}{{\rm{O}}_{\rm{4}}}\) is composed of three isoprene units. The sturcture of abscisic acid is shown below:
CHXII15:POLYMERS
325168
Natural rubber and gutta-percha rubber, respectively are
Vulcanised rubber resists wear and tear due to friction.
CHXII15:POLYMERS
325167
How many isoprene units are present in abscisic acid?
1 Three
2 Two
3 Four
4 Five
Explanation:
Abscisic acid with molecular formula \({{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{20}}}}{{\rm{O}}_{\rm{4}}}\) is composed of three isoprene units. The sturcture of abscisic acid is shown below:
CHXII15:POLYMERS
325168
Natural rubber and gutta-percha rubber, respectively are
Vulcanised rubber resists wear and tear due to friction.
CHXII15:POLYMERS
325167
How many isoprene units are present in abscisic acid?
1 Three
2 Two
3 Four
4 Five
Explanation:
Abscisic acid with molecular formula \({{\rm{C}}_{{\rm{15}}}}{{\rm{H}}_{{\rm{20}}}}{{\rm{O}}_{\rm{4}}}\) is composed of three isoprene units. The sturcture of abscisic acid is shown below:
CHXII15:POLYMERS
325168
Natural rubber and gutta-percha rubber, respectively are
