Which statement incorrect about dicot st...

Which statement incorrect about dicot stem?

Collenchymatous hypodermis, sclerecnchymatous pericycle, parenchymatous pith

Ring arrangement of vascualr bundles parenchymotous medullary rays and endodoermal strach sheateh

Multiple layered cortex , semi lunar pericycl,e, conjoint , open and endarch protoxylem

None of the above

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The correct Answer is:

Dicot stem have
Collenchymatous hypodermis, sclernchymatous pericycle, paraenchymotous pith ?
Ring arrangement of vascular bundles parenchuymatous medullary rays, endodermal starch sheath
Multiple layered cortex , semi lunar pericylclye, conjoint open and endarch protoxylem

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Which statement is incorrect about D?

D can produce yellow ppt. on reaction with `overset(Theta)" OH"//I_(2)`

D can be prepared by `Ph-C-=CH` on reaction with `Hg^(2+)//H^(+)//H_(2)O`

D can form geometrically isomeric oximes on reaction with `NH_(2)-OH`

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In dicot stem

Vascular bundles are conjoint, open and arranged in a ring

Xylem is endarch

Collenchymatous hypodermis

All

Which statement is incorrect about graphite?

It is layered structure

Layers are heald by van der Waal force of attraction

It is used as a dry lubricant

Each carbon in hexagonal ring is `sp^3` hybridised