The 5' methyl guanosine caps added during RNA chain elongation performs what function?

1. prevents degradation by nucleases 

2. are recognized by protein factors

3. are used to identify the type of RNA

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#Question id: 20065

#XL - P Chemistry

In which of the following strong H-bond is present ?

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#Question id: 20066

#XL - P Chemistry

Which is correct order for bond dissociation energy in O₂ , O⁺ ₂  ,O ^- ₂  and O₂^{- 2}

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#Question id: 20067

#XL - P Chemistry

O, P, Q, R elements electronic configuration is given below

O = 1s² P = 1s² , 2s ² , 2p²

Q = 1s² , 2s ² , 2p⁵ R = 1s² , 2s² , 2p⁶

Which atom has strong behaviour of electrovalent bond ?

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#Question id: 20068

#XL - P Chemistry

In which molecule bond distorsion is more according to VSEPR theory ?

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#Question id: 20069

#XL - P Chemistry

Which of the following species is more stable ?

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#Question id: 20070

#XL - P Chemistry

Number of nonbonding electron pair in XeF₆, XeF₄ and XeF₂ respectively