JEE Main 2019 (Online) 12th January Morning Slot | Polymers Question 54 | Chemistry

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JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

-1

Poly $$\beta $$ –hydroxybutyrate-co-$$\beta $$-hydroxyvalerate (PHBV) is a copolymer of

2-hydroxybutanoic acid and 3-hydroxypentanoic acid

3-hydroxybutanoic acid and 2-hydroxypentanoic acid

3-hydroxybutanoic acid and 3-hydroxypentanoic acid

3-hydroxybutanoic acid and 4-hydroxypentanoic acid

JEE Main 2019 (Online) 11th January Evening Slot

MCQ (Single Correct Answer)

-1

The homopolymer formed from 4-hydroxy-butanoic acid is :

JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Polymers Question 55 English Option 1

JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Polymers Question 55 English Option 2

JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Polymers Question 55 English Option 3

JEE Main 2019 (Online) 11th January Evening Slot Chemistry - Polymers Question 55 English Option 4

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

The correct match between items I and II is :

Item-I (Mixture)		Item-II (Seperation method)
(A)	H₂O : Sugar	(P)	Sublimation
(B)	H₂O : Aniline	(Q)	Recrystallization
(C)	H₂O : Toluene	(R)	Steam distillation
		(S)	Differential extraction

A$$ \to $$(R); (B)$$ \to $$(P); (C)$$ \to $$(S)

A$$ \to $$(Q); (B)$$ \to $$(R); (C)$$ \to $$(S)

A$$ \to $$(Q); (B)$$ \to $$(P); (C)$$ \to $$(R)

A$$ \to $$(S); (B)$$ \to $$(R); (C)$$ \to $$(P)

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

The polymer obtained from the following reaction is :

JEE Main 2019 (Online) 11th January Morning Slot Chemistry - Polymers Question 56 English

JEE Main 2019 (Online) 11th January Morning Slot Chemistry - Polymers Question 56 English Option 1

JEE Main 2019 (Online) 11th January Morning Slot Chemistry - Polymers Question 56 English Option 2

JEE Main 2019 (Online) 11th January Morning Slot Chemistry - Polymers Question 56 English Option 3

JEE Main 2019 (Online) 11th January Morning Slot Chemistry - Polymers Question 56 English Option 4

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