Which of the following is not a semisynthetic polymer? (i) cis-polyisoprene (ii) Cellulose nitrate (iii) Cellulose acetate (iv) Vulcanised rubber

Home » Which of the following is not a semisynthetic polymer? (i) cis-polyisoprene (ii) Cellulose nitrate (iii) Cellulose acetate (iv) Vulcanised rubber

CBSE | Chemistry | Class 12 | ncert exemplar | Polymers

Which of the following is not a semisynthetic polymer? (i) cis-polyisoprene (ii) Cellulose nitrate (iii) Cellulose acetate (iv) Vulcanised rubber

Option (i) is the answer

M-polyisoprene is a polymer that comes from nature.

i

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B Convex, convex
C Convex, concave
D Concave, convex

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(A) active mass
(B) molecular weight
(C) atomic weight
(D) equivalent weight

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What do you understand by lanthanide contraction

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Explain oxidization properties of potassium permanganate in acidic medium.

A …… lens is used to correct myopia and a ….. lens is used to correct hypermetropia.
A Concave, concave
B Convex, convex
C Convex, concave
D Concave, convex

Rate of reaction of any substance depends on
(A) active mass
(B) molecular weight
(C) atomic weight
(D) equivalent weight

Formula of oleum is
(A) $\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{7}$
(B) $\mathrm{H}_{2} \mathrm{SO}_{4}$
(C) $\mathrm{H}_{2} \mathrm{SO}_{3}$
(D) $\mathrm{H}_{2} \mathrm{SO}_{5}$

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Find the shortest distance between the given lines.

Find the shortest distance between the given lines.

Find the shortest distance between the given lines.

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