Alcohols, Phenols and Ethers — Chemistry STD 12 Science — Question

Draw structure of the following derivative.

The ethylene ketal of hexan-3-one.

What happens when:
Bromobenzene is treated with Mg in the presence of dry ether.

Read the given passage and answer the questions number 1 to 5 that follow:
The substitution reaction of alkyl halide mainly occurs by S_N1 or S_N2 mechanism. Whatever mechanism alkyl halides follow for the substitution reaction to occur, the polarity of the carbon halogen bond is responsible for these substitution reactions. The rate of S_N1 reactions are governed by the stability of carbocation whereas for S_N2 reactions steric factor is the deciding factor. If the starting material is a chiral compound, we may end up with an inverted product or racemic mixture depending upon the type of mechanism followed by alkyl halide. Cleavage of ethers with HI is also governed by steric factor and stability of carbocation, which indicates that in organic chemistry, these two major factors help us in deciding the kind of product formed.
Predict the stereochemistry of the product formed if an optically active alkyl halide undergoes substitution reaction by S_N1 mechanism.

How will you bring about the following conversion?
But-1-ene to but-2-ene.

If the rate constant and unit of reaction rate are same for a reaction, then what will be the order of the reaction?

Out of zinc and tin, whose coating is better to protect iron objects?

How does the molarity of a solution change with temperature?

Which of the following will have higher molar conductivity between them : (i) One mole NaCl in 100 ml solution (ii) One mole NaCl in 250 ml solution and why?

Write the structures of the following organic halogen compound.
2-Chloro-3-methylpentane.