Question
Classify the elements on basis of electronic configuration.

Answer

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Attempt any five of the following:
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2. Although benzene is highly unsaturated it does not undergo addition reactions.
3. How is alkene produced by vicinal dihalide?
4. How will you convert ethanoic acid into ethene?
5. What is the number of $\sigma$ and $\pi$ bond in $N \equiv C - CH = CH - C \equiv N$ ?
6. Write the general formula for alkynes.
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(i) Boiling point
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  2. Calculate the pH of a $1.0 \times 10^{-8}$ M solution of HCl.
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Match the terms mentioned in Column I with the terms in Column II.
 
Column I
 
Column II
(i)
Carbocation
(a)
Cyclohexane and 1- hexene.
(ii)
Nucleophile
(b)
Conjugation of electrons of C–H σ bond with empty p-orbital present at adjacent positively charged carbon.
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Hyperconjugation
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$\text{sp}^2$ hybridised carbon with empty p-orbital.
(iv)
Isomers
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sp hybridisation
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Species that can receive a pair of electrons.
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Electrophile
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Species that can supply a pair of electrons.
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