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The size of any species depends on vario...

The size of any species depends on various factors such as nature of charge, magnitude charge / oxidation state, effective nuclear charge, electronic configuration etc. Based on the above information, answer the following questions.
The INCORRECT order of size is

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Answer carefully: (a) Two large conducting spheres carrying charges Q_(1) and Q_(2) are brought close to each other. Is the magnitude of electrostatic force between them exactly given by Q_(1),Q_(2)//4pi epsilon_(0)r^(2) , where r is the distance between their centres? (b) If Coulomb’s law involved 1//r^(3) dependence (instead of would Gauss’s law be still true ? (c) A small test charge is released at rest at a point in an electrostatic field configuration. Will it travel along the field line passing through that point? (d) What is the work done by the field of a nucleus in a complete circular orbit of the electron? What if the orbit is elliptical? (e) We know that electric field is discontinuous across the surface of a charged conductor. Is electric potential also discontinuous there? (f) What meaning would you give to the capacitance of a single conductor? (g) Guess a possible reason why water has a much greater dielectric constant (= 80) than say, mica (= 6).

Nucleophilic substitution reactions generally expressed as Nu^(-) +R-L rarr R-Nu +L^(-) Where Nu^(-) rarr Nucleophile , R-L rarr substrate, L rarr leaving group The best leaving groups are those that become the most stable ions after they depart. since most leaving group leave as a negatibe ion, the best leaving groups are those ions that stabilize a negative charge most effectively. A good leaving group should be (a) electron-withdrawing to polarize the carbon (b) stable once it has left (not a strong base) (c) polarise able to maintain partial bonding with the carbon in the transition state (both S_(N)1 and S_(N)2) . This bonding helps to stabilise the transition state and reduces the activation energy. (I) CI^(-) (II) CH_(3)O^(-) (III) CH_(3)S^(-) (IV) I^(-) The correct order of increasing leaving group capability of above anions

Nucleophilic substitution reactions generally expressed as Nu^(-) +R-L rarr R-Nu +L^(-) Where Nu^(-) rarr Nucleophile , R-L rarr substrate, L rarr leaving group The best leaving groups are those that become the most stable ions after they depart. since most leaving group leave as a negative ion, the best leaving groups are those ions that stabilize a negative charge most effectively. A good leaving group should be (a) electron-withdrawing to polarize the carbon (b) stable once it has left (not a strong base) (c) polarise able to maintain partial bonding with the carbon in the transition state (both S_(N)1 and S_(N)2) . This bonding helps to stabilise the transition state and reduces the activation energy. Among the following which is false statement?

Nucleophilic substitution reactions generally expressed as Nu^(-) +R-L rarr R-Nu +L^(-) Where Nu^(-) rarr Nucleophile , R-L rarr substrate, L rarr leaving group The best leaving groups are those that become the most stable ions after they depart. since most leaving group leave as a negative ion, the best leaving groups are those ions that stabilize a negative charge most effectively. A good leaving group should be (a) electron-withdrawing to polarize the carbon (b) stable once it has left (not a strong base) (c) polarise able to maintain partial bonding with the carbon in the transition state (both S_(N)1 and S_(N)2) . This bonding helps to stabilise the transition state and reduces the activation energy. Among the following which is feasible?

Nucleophilic substitution reactions generally expressed as Nu^(-) +R-L rarr R-Nu +L^(-) Where Nu^(-) rarr Nucleophile , R-L rarr substrate, L rarr leaving group The best leaving groups are those that become the most stable ions after they depart. since most leaving group leave as a negative ion, the best leaving groups are those ions that stabilize a negative charge most effectively. A good leaving group should be (a) electron-withdrawing to polarize the carbon (b) stable once it has left (not a strong base) (c) polarise able to maintain partial bonding with the carbon in the transition state (both S_(N)1 and S_(N)2) . This bonding helps to stabilise the transition state and reduces the activation energy. (I) CH_(3)Br (II) CH_(3)F (III) CH_(3)OH (IV) CH_(3)OSO_(2)CF_(3) The correct order of decreasing reactivity of the above compounds towards CH_(3)O^(-) in an S_(N)2 reaction is:

ALLEN -TEST PAPER-Chemistry
  1. Nodal plane of an orbital is the region arround the nucleus where prob...

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  2. Nodal plane of an orbital is the region arround the nucleus where prob...

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  3. The size of any species depends on various factors such as nature of c...

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  4. The size of any species depends on various factors such as nature of c...

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  5. Electron affinity and electronegativity are very closely related, yet ...

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  6. Electron affinity and electronegativity are very closely related, yet ...

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  7. Different types of bonds are formed in the chemical compounds. These b...

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  8. Different types of bonds are formed in the chemical compounds. These b...

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  9. |{:(,"List-I(Species)",,"List-II(Spin only Magnetic Moment)"),((P),Mn^...

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  10. |{:(,"List-I(Atom/Ions)",,"List-II(Electron Affinity in eV/atom and co...

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  11. |{:(,"List-I(Orbitals)",,"List-II"),(,"(Approach axis is z-axis)",,"(T...

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  12. |{:(,"List-I",,"List-II"),((P),Na^(+)gt K^(+)gt Rb^(+),(1),"Ionic mobi...

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  13. Find the difference of percentage ionic character in N-F & B-F bond by...

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  14. Find the values of 'a' in equation 'a+0.65 (n+1) which gives value of ...

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  15. Find the maximum number of electron in Chromium which is present in ax...

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  16. The number of lone pair in C3N3Cl3 is

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  17. Find the number of ion(s) having radius greater then Li^+. Rb^+, Ba^...

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  18. Find the total number of lone pair in poly phosphoric acid having four...

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  19. Let f(x)=Sigma(i=1)^(n) (x-xi)^2, where xi are real coefficients , the...

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  20. If r lt s lt p are in arithmetic progression, then both roots of the q...

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