List of practice Questions

The total number of head to tail isoprene linkages in the following molecule is ..........

The total number of tautomers possible for I and II together is ..........

The Maxwell distribution of speeds of a gas at 300 K is given below. The molar mass (in g mol$^{-1}$) of this gas is ......... (Round off to one decimal place) (R = 8.3 J mol$^{-1}$ K$^{-1}$)

A bacterial colony grows via cell division where each mother bacterium independently produces two daughter cells in 20 minutes. If the concentration of bacteria is $ 10^4 \, \text{cm}^{-3} $, the colony becomes harmful. Starting from a colony with an initial concentration of 5 cm$^{-3}$, the time taken (in minutes) for the colony to become harmful is ......... (Round off to nearest integer)

The heat of formation of MgO at 300 K and 1 bar pressure is -600.60 kJ mol$^{-1}$. The free energy (in kJ mol$^{-1}$) of formation of MgO at 280 K is ......... (Round off to nearest integer)

The total number of all possible isomers of $ [\text{Co}( \text{H}_2\text{NCH}_2\text{CH}_2\text{NH}_2)_2 ]^{2+} $ and $ [\text{Co}( \text{H}_2\text{NCH}_2\text{CH}_2\text{NH}_2)_3 ]^{3+} $ together is ............

The value of 'n' in $[ \text{P(O}_3\text{)}_4 ]^{6-}$ is ............

The correct sequence of reactions for the synthesis of the following molecule is(are)

The compound(s) which will have only two signals in the $ ^1 \text{H} $ NMR spectrum in 3:2 ratio is(are)

Achiral stereoisomer(s) is(are) possible for

For the reaction shown in Scheme 1, the concentration profiles of different species are provided.
$\text{Scheme 1:}$

Based on this graph, the correct condition(s) regarding the rate constants is(are)