Questions

Infrared spectroscopy involves the interaction of infrared radiation with matter. It is used by chemists to determine functional groups in molecules. IR Spectroscopy measures the vibrations of atoms, and based on this it is possible to determine the functional groups.

Here in the given spectrum, there is no alcohol stretch present in the spectrum. There is no vinyl bending present in the spectrum.
 

Hence, both options B and C are compounds that are not matching with IR spectrum. 1, 5 – Hexadiene is the compound matches the IR Spectrum.

From the given conditions ,

only A = 27 yrs satisfies.

The US Congress consists of two bodies 

a) the Senate and   b) the House of Representatives. The Senate, composed of 100 members (two Senators from each State), is a powerful body and exercises a very real influence in national affairs.

The Mediterranean sea separates Europe from Africa.

A constitutional monarchy is a form of monarchical government established under a constitutional system which acknowledges an elected or hereditary monarch as head of state.

The monarchs in a constitutional monarchy had only the power that was allocated to them in the constitution of their land or republic.