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The representation of the ground state e...

The representation of the ground state electronic configuration of He by box- diagram as

is wrong because it violates

A

Hysenberg's Uncertainty Principle

B

Bohr's Quantization Theory of Angular Momenta

C

Pauli Exclusion Principle

D

Hund's Rule

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2011-CHEMISTRY
  1. Which one of the following is not true at room temperatue and pressure

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  2. An electric current is passed through an aquous solution of a mixture ...

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  3. The representation of the ground state electronic configuration of He...

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  4. The electronic transitions from n=2 to n =1 will produce shortest wav...

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  5. In the following electron dot structure , calculate the formal charge ...

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  6. If the molecular wt.of Na2S2O3 and I2 " are" M1 and M2 respectively...

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  7. A radioactive atom (Y)^(X) M emits two alpha particles and one be...

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  8. An element belongs to Group 15 and third period of the periodic tab...

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  9. Which one of the following is paramagnetic?

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  10. Platinum, Palladium and Iridium are called noble metals because.

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  11. Which one is not a constituent of nucleic acid?

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  12. The sp^(3) d^(2) hybridization of central atom of a molecule woul...

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  13. In aqueous solutions glucose remains as

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  14. Which of the following is used to prepare Cl2 gas at room temperatu...

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  15. NO2 is not obtained on heating

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  16. Two aromatic compounds having formula C7H8O which are easily identi...

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  17. The ease of dehydrohalogenation of alkyl halide with alcoholic KOH i...

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  18. The ease of Nitration of the following three hydrocarbones follows th...

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  19. The correct order of decreasing acidity of nitrophenols will be

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  20. Among the alkenes which one produces tertiary butyl alcohol on acid ...

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