Chemistry 2nd Paper CQ-Jessore Board-2019

What is called enantiomer?

Napthalene is an aromatic compound - Explain.

Explain the structure of compound ' $\mathrm{A}$ ' with reaction.

Which one is more reactive in nucleophilic addition reaction between ' $C$ ' and 'D'? Analyze.

Define e.m.f of a cell?

Why Lithium ion battery is more useful than Ledstorage battery?

Determine the changed concentration of solution in Pot-A according to stem.

Will there be create any problem for using the both cells for long time? Analyze mathematically.

Define ppm.

$\mathrm{Sn}^{2+}$ ion behave as both of oxidising and reducing agent -Explain.

The element of tincture iodine behave as a reducing agent - Explain.

In which company's tincture iodine, concentration of iodine is more? Analyze mathamatically.

What is called leather tanning?

Write difference between atom and nano particle.

Describe the production principle of 'K' industry with equation.

What will be the taken measures to prevent pollutions of given stem?

What is called glycoside bond?

Ethyl amine is more basic than ammonia Explain.

Though compound 'T' is basic, then why compound ' $\mathrm{S}$ ' is acidic? Explain.

In nitration reaction of compound ' $\mathrm{S}$ ' produces ortho and para product, on the other hand ' $T$ ' produces only meta product - Analyze.