CBSE
Multiple Choice QuestionsAssertion : 1,3-butadiene is the monomer for natural rubber.
Reason : Natural rubber is formed through anionic addition polymerization.
If both assertion and reason are true and reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true, but reason is false.
Both assertion and reason are false statements
Lucas test is used for the determination of :
alcohols
alkyl halides
phenols
aldehydes
Teflon is a polymer of :
tetra fluoroethylene
tetrabromoethylene
tetraiodoethylene
tetrachloroethylene
The components of Zeigler Natta catalyst, used in the polymerisation of propylene, are:
TiCl3 + Al(C2H5)3
TiCl4 + Al(C2H5)3
Ti(C2H5)3 + AlCl3
Ti(C2H5)4 + AlCl3
Chain transfer reagent is
CCl4
CH4
O2
H2
Assertion : Teflon has high thennal stability and chemical inertness.
Reason : Teflon is a thermoplastic.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Which is not a polymer?
Sucrose
Enzyme
Starch
Teflon
Which of the following is a biodegradable polymer?
Cellulose
Polythene
Polyvinyl chloride
Nylon-6
Assertion : Ebonite is highly vulcanised rubber.
Reason : Perlon is used in the manufacture of fibres.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
The monomer of teflon polymer is :
CF2=CF2
CF2=CCl2
CH2F-CH2F
CF2=CFCl
