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Ebonite is

Question

Easy

Solving time: 1 mins

Ebonite is

natural rubber

synthetic rubber

highly vulcanised rubber

None of the above

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Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

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Practice questions from New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

Question 1

Easy

Which is a conducting polymer?

Polyacetylene
Polystyrene
Polyethylene
Polybutadiene

Topic:

Polymers

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

View 2 solutions

Question 2

Hard

Cationic polymerisation of styrene forming polystyrene always takes place

head-to-tail
head-to-head
tail-to-tail
anionic polymerisation and not cationic polymerisation (head-to-tail) takes place

Topic:

Polymers

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

View solution

Question 3

Easy

Biodegradable polymers are

TPA
$PHB$
$PHBV$
All of these

Topic:

Polymers

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

View solution

Question 4

Easy

Substance having ester linkage is

bakelite
polythene
PVC
terylene

Topic:

Polymers

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

View solution

Practice more questions from Polymers

Question 1

Easy

Terylene is a:

Polyamide
Polyester
Polyethylene
Polypropylene

Topic:

Polymers

Book:

Calculus: Early Transcendentals

View solution

Question 2

Medium

The first step in bakelite formation is

aromatic nucleophilic substitution
aromatic electrophilic substitution
condensation
electrophilic addition

Topic:

Polymers

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

View solution

Question 3

Easy

Natural rubber is a polymer of:

?????-isoprene
???-isoprene
???-and ?????-isoprene
None of these

Topic:

Polymers

View 2 solutions

Question 4

Easy

When two or more chemically different monomers take part in polymerization, it is called:

Addition polymerization
Copolymerization
Chain polymerization
Homopolymerisation

Topic:

Polymers

View solution

Practice questions on similar concepts asked by Filo students

Question 1

n

(1) एनौ साल : (2) : :

- 5

क्लोरो बेजीन (3)

Topic:

Polymers & Biomolecules

View solution

Question 2

That radiation has a lower frequency from: radio waves from AM radio station broadcasting at 1090 k H z the green light from an LED on a stereo system with a wavelength of 550 n m Solution: The frequency of radio waves from an AM radio station broadcastingis lower than the frequency of the green light from an LED (light-emitting diode) in a stereo system. Explanation: Concept: We are using the relation between wavelength, frequency, and speed of light to calculate the frequency for the given radiations. To compare frequencies of two radiations, they must have same units. If they are not, then we need to convert them to a same unit Formula: ν = c λ Where, ν = frequency, c = speed of light, λ = wavelength Given: Radio waves from an AM radio station broadcasting, ν = 1090 k H z The green light from an LED (light-emitting diode) in a stereo system, λ = 550 n m Calculations: The value of speed of light is taken from the Appendix as 2.998 × 10 8 m s . a) ν = 1090 k H z × 1000 H z 1 k H z = 1.09 × 10 6 H z = 1.09 × 10 6 s - 1 b) λ = 550 n m × 1 m 10 9 n m = 5.5 × 10 - 7 m ν = 2.998 × 10 8 m s 5.5 × 10 - 7 m = 5.45 × 10 14 s - 1 1.09 × 10 6 s - 1 is smaller than 5.45 × 10 14 s - 1 . So, the frequency of radio waves from an AM radio station broadcasting is lower than the frequency of the green light from an LED (light-emitting diode) in a stereo system. Conclusion: We can determine the lower frequency by comparing the frequency of the two given wavelengths.

Topic:

Chemistry

View solution

Question 3

(iii) स्टार्च 2. (क) असामान्य मोलर द्रव्यमान से आप क्या समझते हैं? जितित होने वाले

Ca (NO_{3})_{2}

विलयन के लिए वाण्ट हाफ गुणक (ख) फलक केन्द्रित घनीय (fcc) एकक कोष्ठिका में परमाणुओ कीजिए। की गणना कीजिए। है? (घ) कोलाइडी विलयन का शुद्धीकरण किन विधियों द्वारा कियां संक्षेप में वर्णन कीजिए। 3. (क) ठोस क्रिस्टलों में बिन्दु दोष पर संक्षिप्त टिप्पणी लिखिए (ख) क्या होता है, जब - (केवल रासायनिक समीकरण लिखिए (i)

SO_{2}

को

Fe

(III) लवण के जलीय विलयन में से प्रवाहित व (ii) अमोनिया को क्लोरीन के आधिक्य के साथ गर्म करते हैं ? (ग) प्रत्येक के दो-दो उदाहरण देते हुए द्विक लवण तथा सं० कों में अन्तर स्पष्ट कीजिए। (घ) आर०एन०ए० (RNA) पर संक्षिप्त टिप्पणी लिखिए। 4. (क) नर्स्स्ट समीकरण लिखिए तथा उसकी एक उपयोगिता लिखि (ख) विषमांगी उत्प्रेरण क्या है ? विषमांगी उत्प्रेरण के अधिशो न्त की क्रियाविधि को स्पष्ट कीजिए। (ग) निम्न अभिक्रियाओं में

A, B

तथा

C

यौगिकों के नाम तथा संरच लिखिए :

CH_{3} COOH ⟶ ⟶ NH_{3} A ⟶ NaOBr Br ⟶ NaNO_{2} + HCl C 1 + 1

. (घ) ग्लूकोस के दो गुणधर्म का समीकरण लिखिए। ग्लूकोस में कार्बोन एल्डीहाइड के रूप में उपस्थित होने को कैसे सिद्ध करेंगे ? 5. (क) मोलल अवनमन स्थिरांक को परिभाषित कीजिए।

1 + 1 +

लीन ग्लाइकाल

(C_{2} H_{6} O_{2})

को 500 ग्राम जल यन के हिमांक की गणना कीजिए। जल का मो नान

1.86 K kg mol^{- 1}

है।

Topic:

Alcohols, Phenols & Ethers

View solution

Question 4

(1) what ix Henry'x law

Topic:

Gases & Solutions

View solution

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Question Text	Ebonite is
Topic	Polymers
Subject	Chemistry
Class	Class 12
Answer Type	Text solution:1
Upvotes	148

Ebonite is

Text solutionVerified

Practice questions from New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

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