\({ C }_{ 2 }{ H }_{ 5 }Br+2Na\overset { dry\quad ether }{ \longrightarrow } { C }_{ 4 }{ H }_{ 10 }+2NaBr\) The above reaction is an example of which of the following

(a)

Reimer Tiemann reaction

(b)

Wurtz reaction

(c)

Aldol condensation

(d)

Hoffmann reaction

The C – H bond and C – C bond in ethane are formed by which of the following types of overlap _________

(a)

sp³ – s and sp³ – sp³

(b)

sp² – s and sp² – Sp²

(c)

sp – sp and sp – sp

(d)

p – s and p – p

Which of the following is optically active _________

(a)

2 – methyl pentane

(b)

citric acid

(c)

Glycerol

(d)

none of these

The general formula for cyclo alkanes _________

(a)

C_nH_n

(b)

C_nH_2n

(c)

C_n H_2n–2

(d)

C_n H_2n+2

Which of the following compounds shall not produce propene by reaction with HBr followed by elemination (or) only direct elimination reaction (NEET)__________

(a)

(b)

CH₃ – CH₂ – CH₂ – OH

(c)

H₂C = C = 0

(d)

CH₃ – CH₂ – CH₂Br