Choose the correct statement regarding the stereochemistry of amino acid

1. 16 amino acid except (Thr, Ile, Cys, Gly) L Fischer projection is equal to S and D is equal to R configuration 

2. Thr, Ile is special case because of two chiral center exist in L – Ile/Thr – 2S,3R and D-Ile/Thr–2R,3S configuration  

3. Cys exiest in L- Cys – R & D- Cys – S configuration 

4. Gly is optically inactive 

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#Question id: 27378

#Section C (Domain-Specific Knowledge)

Choose the correct statements

(i) Atomic number = number of protons + number of electrons

(ii)Mass number = number of protons + number of neutrons

(iiiAtomic number = number of protons + number of neutrons

(iv)Atomic number = number of protons = number of electrons

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#Question id: 27379

#Section C (Domain-Specific Knowledge)

Atomic radii can be measure by calculation

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#Question id: 27380

#Section C (Domain-Specific Knowledge)

Choose the incorrect statements

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#Question id: 27381

#Section C (Domain-Specific Knowledge)

Size of atom or atomic radii can be estimated by

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#Question id: 27382

#Section C (Domain-Specific Knowledge)

Calculate the effective nuclear charge (Zeff) experienced by the 2s electrons of the Sulfur atom (S).

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#Question id: 27383

#Section C (Domain-Specific Knowledge)

Choose the correct statement related to the atomic size Cl and Mg