An organic compound $\mathrm{A}$ has the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}$ is a liquid at room temperature. The organic liquid $\mathrm{A}$ reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid $\mathrm{A}$ is heated with concentrated sulphuric acid at $170 °\mathrm{C}$, it forms compound $\mathrm{B}$ which decolourises bromine water. The compound $\mathrm{B}$ adds on one molecule of hydrogen in the presence of $\mathrm{Ni}$ as a catalyst to form a compound $\mathrm{C}$ which gives substitution reactions with chlorine.

What is compound $\mathrm{A}$?

An organic compound $\mathrm{A}$ having the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}$ is a liquid at room temperature. The organic liquid A reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid $\mathrm{A}$ is heated with concentrated sulphuric acid at $170 °\mathrm{C}$, it forms a compound $\mathrm{B}$ which decolourises bromine water. The compound $\mathrm{B}$ adds on one molecule of hydrogen in the presence of $\mathrm{Ni}$ as a catalyst to form a compound $\mathrm{C}$ which gives substitution reactions with chlorine.

What is compound $\mathrm{B}$?

An organic compound $\mathrm{A}$ having the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}$ is a liquid at room temperature. The organic liquid A reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid $\mathrm{A}$ is heated with concentrated sulphuric acid at $170 °\mathrm{C}$, it forms a compound $\mathrm{B}$ which decolourises bromine water. The compound $\mathrm{B}$ adds on one molecule of hydrogen in the presence of $\mathrm{Ni}$ as a catalyst to form a compound $\mathrm{C}$ which gives substitution reactions with chlorine.

An organic compound $\mathrm{A}$ having the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}$ is a liquid at room temperature. The organic liquid A reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid $\mathrm{A}$ is heated with concentrated sulphuric acid at $170 °\mathrm{C}$, it forms compound $\mathrm{B}$ which decolourises bromine water. Compound $\mathrm{B}$ adds on one molecule of hydrogen in the presence of $\mathrm{Ni}$ as a catalyst to form a compound $\mathrm{C}$ which gives substitution reactions with chlorine.

An organic compound $\mathrm{A}$ having the molecular formula ${\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}$ is a liquid at room temperature. The organic liquid A reacts with sodium metal to evolve a gas which burns causing a little explosion. When the organic liquid $\mathrm{A}$ is heated with concentrated sulphuric acid at $170 °\mathrm{C}$, it forms a compound $\mathrm{B}$ which decolourises bromine water. The compound $\mathrm{B}$ adds on one molecule of hydrogen in the presence of $\mathrm{Ni}$ as a catalyst to form a compound $\mathrm{C}$ which gives substitution reactions with chlorine.

Which of the following hydrocarbons can decolourise bromine water and which cannot? Why?

${\mathrm{C}}_6{\mathrm{H}}_{12}, {\mathrm{C}}_6{\mathrm{H}}_{14}, {\mathrm{C}}_6{\mathrm{H}}_{10}$

A neutral organic compound with four carbon atoms $\mathrm{X}$ reacts with sodium metal to evolve a gas which burns with a ‘pop’ sound. Another organic compound $\mathrm{Y}$ with four carbon atoms reacts with sodium hydrogen carbonate to evolve a gas which turns lime water milky. When compounds $\mathrm{X}$ and $\mathrm{Y}$ are heated together in the presence of a little of concentrated sulphuric acid, then a new compound $\mathrm{Z}$ is formed.

What is compound $\mathrm{X}$? Also write its formula.

A neutral organic compound with four carbon atoms $\mathrm{X}$ reacts with sodium metal to evolve a gas which burns with a ‘pop’ sound. Another organic compound $\mathrm{Y}$ with four carbon atoms reacts with sodium hydrogen carbonate to evolve a gas which turns lime water milky. When compounds $\mathrm{X}$ and $\mathrm{Y}$ are heated together in the presence of a little of concentrated sulphuric acid, then a new compound $\mathrm{Z}$ is formed.

What is compound $\mathrm{Y}$? Also write its formula.