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$ Progenote is considered to be the more...

$ Progenote is considered to be the more ancient form of life which gave rise to archaeobacteria and eubacteria.
! Monomers are always multicellular.

A

If both As and R are correct and R is correct explanation of As

B

If both As and R are correct but R is not correct explanation of As

C

If As is correct, R is wrong

D

If both As and R are wrong.

Text Solution

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The correct Answer is:
C
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Polymers are made up of small molecules called monomers. Polymers which are formed by one type of monomer called homopolymers and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas systhetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes placed by ionic (cationic or anionic) as well as free radical a series of condensation reactions between the monomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation polymers or addition but cross linked polymers are always condensation polymers. Which one of the following monomers is most reactive for anionic polymerization ?

Polymers are made up of small molecules called monomers. Polymers which are formed by one type of monomer called homopolymers and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas systhetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes placed by ionic (cationic or anionic) as well as free radical a series of condensation reactions between the monomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation polymers or addition but cross linked polymers are always condensation polymers. Which of the these are natural polymers ?

Polymers are made up of small molecules called monomers. Polymers which are formed by one type of monomer called homopolymers and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas systhetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes placed by ionic (cationic or anionic) as well as free radical a series of condensation reactions between the monomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation polymers or addition but cross linked polymers are always condensation polymers. Which one of the following polymers is prepared by condensation polumerization ?

Polymers are made up of small molecules called monomers. Polymers which are formed by one type of monomer called homopolymers and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas systhetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes placed by ionic (cationic or anionic) as well as free radical a series of condensation reactions between the monomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation polymers or addition but cross linked polymers are always condensation polymers. Which one of the following is biogegradable polymer ?

Polymers are made up of small molecules called monomers. Polymers which are formed by one type of monomer called homopolymers and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas systhetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes placed by ionic (cationic or anionic) as well as free radical a series of condensation reactions between the monomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation polymers or addition but cross linked polymers are always condensation polymers. Which of the following is a chain growth polymer ?

Polymers are made up of small molecules called monomers. Polymers which are formed by one type of monomer called homopolymers and which are formed by more than one type of monomers are called co-polymers. Natural polymers are biodegradable whereas systhetic polymers may or may not be. Addition or chain growth polymerization involves the repeated addition of monomers to the polymer chain. The monomers are unsaturated compounds and this type of polymerization takes placed by ionic (cationic or anionic) as well as free radical a series of condensation reactions between the monomers. Each monomer normally contains two functional groups. Branch chain polymers may be condensation polymers or addition but cross linked polymers are always condensation polymers. Total number of lone pairs of electrons in melamine is:

DINESH PUBLICATION-ENVIRONMENTAL ISSUES-Assertion and reason
  1. $ Classification based on the evolutionary relationships among the org...

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  2. $ The relationship between comparable organs and structure is called A...

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  3. $ Progenote is considered to be the more ancient form of life which ga...

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  4. $ Peptidogycan is found in the cell wall of Algae. ! Blue-green Alga...

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  5. $ Mesosome is a type of polyribosomes. ! Polyribosomes from a part o...

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  6. $ Halophytes are those plants which grow in salty soils. Heliophyte...

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  7. $ Spirulina is a rich source of proteins. ! Spirulina has a spiral c...

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  8. $ Sulphur depended archaebacteria are called thermoacidophiles. ! Ar...

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  9. $ Nostoc has chloropyll "a" and phycocyanin pigments. ! Chlorophyll ...

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  10. $ Protists are eukaryotes ! Eukaryotes do not have the double membra...

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  11. $ Euglena is biflagellated and has cell wall. ! Because cell wall is...

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  12. $ The glagellum in protists is single stranded. ! Single stranded fl...

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  13. $ Zygotic meiosis occurs at the time of germination of zygote. ! Zyo...

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  14. $ Meiosis is a requirements of sexual reproduction. ! Meiosis occurs...

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  15. $ In the cell wall of Dinoflagellates, there is present only one groov...

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  16. $ Euglena has mixotrophic nutrition. ! Mixtrophic nutrition means th...

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  17. $ Slime mouls are mainly saprophytic. ! Saprophytes get their nutrit...

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  18. $ Forminiferance have a calcareous shell. ! Dimorphic nucleic are pr...

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  19. $ Amoeba is a type of sporozoan. ! Sporozonas have two contractile v...

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  20. $ Fungi may be heterotrophic or autotrophic. ! Mycelium of Rhizopus ...

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