Chemistry 2nd Paper CQ-Rajshahi Board-2023

What is mole fraction?

Why is free radical more active? Explain.

What is the suitable indicator for titration of A solution by B solution? Explain with graph.

Analyze the nature of mixture through $\mathrm{P}$ calculation when ' $A$ ' solution is mixed with ' $B$ ' solution.

What is reference electrode?

$\mathrm{HCO}_{3}{ }^{-}$ion is amphoteric-Explain.

Describe the reaction between $\mathrm{B}$ compound with boiling Chlorine with equation.

Write the conversation of $\mathrm{A}$ and $\mathrm{C}$ compounds.

Give the definition of e.m.f.

Why is not Alkyne-2, acidic?

Near which one between ' $\mathrm{X}$ ' and ' $\mathrm{Y}$ ', will be the position of A? Give the rational explanation.

Why one of the two compounds of the stem works as Lewis base but the other dosen't work as Lewis acid? Explain.

What is enantiomer?

Calculate the value of $\mathrm{R}$ in S.I unit.

Determine the changed concentration of solution of pot-A after current flow.

Determine the e.m.f. of $\mathrm{B}$ cell mentioning the cell reaction.

What is COD?

What is the molarity of $10 \%\left(\frac{\mathrm{w}}{\mathrm{V}}\right) \mathrm{H}_{2} \mathrm{SO}_{4}$ solution?

Which one has more basisity between the $\mathrm{X}$ and Y compound? Explain with real reason.

Why does its nitration occur in meta position though the substitute group of $\mathrm{Y}$ compound is ortho-para indicator? Explain.