Organic Chemist...

Consideration the addition of HBr to 3,3-Dimethyl-1-butene shown below. what is the best mechanism explanation for the formation of the observed product?

Product $$(C)$$ of above reaction is:

Product (B) of the above reaction is:

What are reactant $$X$$ and product $$Y$$ in the following sequence of reactions ?

Decreasing order of heat evolved upon catalytic hydrogenation of given reactants with $$H_2$$ (Pd/C) is:

Arrange the following in increasing order of their acidic strength.

In the given selective hydrogenation which combination is incorrect?

$$2CH_3-\underset{Ph}{\underset{|}{C}}=CH_2 \to \xrightarrow{H-A(acid)}\underset{(major)}{(A)}$$
Product (A) is :

Which of the following reaction do not present in the major product of the given Birch reductions

The following reaction take place in high yields.
Use your knowledge of alkene chemistry to predict a product even through you have never seen this reaction before