Questions

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.

Ganymede , satellite of Jupiter

Foreign Affairs Ministry has turned down the proposal to rename West Bengal to ‘Bangla’, citing diplomatic confusion over similarities with the neighbouring country Bangladesh, according to reports. The West Bengal Assembly had passed a resolution last year stating that the name of the state would be changed to ‘Bangla’ in Bengali, ‘Bengal’ in English and ‘Bangal’ in Hindi.

One word substitute for "That which cannot be heard" is Inaudible.

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.