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  • 2 answers
Nitrogen and bismuth do not sho allotropy. Nitrogen being small in size and highly electronegative

Nancy Deswal 8 years ago

May be nitrogen
  • 1 answers

Priya Dahiya 8 years ago

It is biodegradable polymer . It stands for polybeta hydoxy butyrate co beta hydroxy valerate . You cn refer to NCERT last page of POLYMERs.
  • 2 answers
Benzaldehyde + acetic anhydride in the presence of CH3C OONa

Ankit Kushwaha 8 years ago

Vb
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ΔS stands for entropy I. E randmoness of particles ΔH stands for enthalpy ΔG stands for Gibbs energy T is temperature The equation states that for a reaction to preoceed Gibbs energy should be negative
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Tushar Sharma 8 years ago

Chloroform, or trichloromethane, is an organic compound with formula CHCl₃. It is a colorless, sweet-smelling, dense liquid that is produced on a large scale as a precursor to PTFE. It is also a precursor to various refrigerants
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Shubhangi Suman 8 years ago

Because it is highly viscous in nature due to which it is unable to soluble in water so , it cannot pass throgh urine.
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Tushti Sachdeva 8 years ago

Sncl2+ hcl
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Reaction between alkyl halide and aryl halide in the presence of ( Na) dry ether yields alkyl arene and release NaCl. This reaction is called Wurtz Fittig reaction.
In wurtz futt reaction alkyl halide react with aryl halide in presence of2Na and 2Na combine with X alkyl group combine aryl group
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Monomer of different polymer are asked in board
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Tushar Sharma 8 years ago

In chemistry, racemization is the conversion of an enantiomerically pure mixture (one where only one enantiomer is present) into a mixture where more than one of the enantiomers are present.

Tushar Sharma 8 years ago

each of a pair of molecules that are mirror images of each other is called enantiomers. Racemisation is a conversion, by heat or by chemical reaction, of an optically active compound into an optically inactive form which half of the optically active substance becomes its miror image (enantiomer). Chirality is a geometric property of some molecules and ions. A chiral molecule/ion is non-superimposable on its mirror image.
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Crystalline and amorphous solids
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Manpreet Singh 8 years ago

Phenol is a benzene hydroxide or a hydroxylbenzene OH group is directly attached to benzene But benzylalcohol is a 1-phenylmethanol ; methanol is attached to benzene ring Formula of phenol is C6H5OH Formula of benzyl alcohol is C7H7OH
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I don't remember it right now but it's given in ncert ozone topic in either 2,3 or 4th paragraph

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