Chemistry NCERT Exemplar Solutions Class 12th Chapter Fourteen

Given below are two statements:

Statement I: In 'Lassaigne's Test', when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.

Statement II: If both nitrogen and sulphur are present in an organic compound, then the excess of sodium used in sodium fusion will decompose the sodium thiocyanate formed to given NaCN and Na₂S.

In the light of the above statements, choose the most appropriate answer from the option given below

Sugar moiety in DNA and RNA molecules respectively are

The acid that is believed to be mainly responsible for the damage of Taj Mahal is

Animals starch is the other name of

Match List I with List II.

Choose the correct answer from the option given below:

The formulas of A and B for the following reaction sequence

Match List I with List II

Choose the correct answer from the options given below:

Which of the following will react with ${\mathrm{C}\mathrm{H}\mathrm{C}\mathrm{l}}_3+$ alc. $\mathrm{K}\mathrm{O}\mathrm{H}$ ?

What are the functional groups present in the structure of maltose?

$\begin{array}{rr}& {\mathrm{E}}_{{\mathrm{C}\mathrm{u}}^{2+}{\mathrm{C}\mathrm{u}}^{\circ }}^{\circ }=+0.34\mathrm{V}\\ & {\mathrm{E}}_{{\mathrm{Z}\mathrm{n}}^{2+}\mid \mathrm{Z}\mathrm{n}}^{\circ }=-0.76\mathrm{V}\end{array}$