Here we have to judge the statement about the hydrogen bond is true or false for water molecule.
The both the statement about hydrogen bonding in water is true i.e. The water molecule can act as hydrogen-bond donor and acceptor.
The hydrogen bond is a weak interaction between a hydrogen atom and an electronegative atom.
In water (H₂O) there remains hydrogen atom (H) and also the electronegative atom oxygen (O). The donor property and acceptor property to produce hydrogen bond in water is shown in figure.
The donor and acceptor property of water is shown in the figure.
Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.