Subjective Type

Identify (A) to (E).

Solution

DU in (A) $$(C_5H_8)=\dfrac{(2 \times 5+2)-8}{2}=2^o$$
Reaction with $$Na+liq.NH_3\Rightarrow$$ Terminal alkyne
Due to $$+1$$ effect of isopropyl group, positive charge on $$C-3$$ is more stabilised and attack of $$_{ }^{ \ominus }{ OH }$$ is more predominant

SIMILAR QUESTIONS

Hydrocarbons

The major product of the following reaction is: $${CH}_{3}C\equiv CH\xrightarrow [ (ii)\ DI ]{ (i)\ DCl \ (1\ equiv) } $$

Hydrocarbons

The synthesis of $$3-octyne$$ is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are:

Hydrocarbons

A student performs a titration with different burettes and finds titre values of $$25.2$$ ml, $$25.25$$ ml and $$25.0$$ ml. The number of significant figures in the average titre value is :

Hydrocarbons

Ethylidene chloride can be prepared by the reaction of $$HCl$$ and:

Hydrocarbons

Which of the following would be produced when acetylene reacts with $$HCl$$?

Hydrocarbons

$$CH\equiv CH\xrightarrow [Excess]{HCl}A\xrightarrow [\Delta]{Hydrolysis} B \xrightarrow [Na-Hg/H_2O]{Reduction}C$$ Compound $$C$$ is:

Hydrocarbons

The end product (C) of the above sequence of reaction is:

Hydrocarbons

The gases (B), (C) and (D), respectively, are:

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