ElectronGate

  to watch video 👇🏻 https://youtu.be/MfzNTfZ7BcE Rust : When a piece of Iron is left out in the open  for while a film of brownish substances gets deposited on its surface  called Rust. Reason 4Fe + 3O 2  + 2H 2 O ------------------->  2Fe 2 O 3 • nH 2 O The Iron reacts with  water and oxygen to form hydrated iron(III) oxide, which we see as rust. how to prevent it:- Keep away from water/moisture. Apply A protective coating.  ( painting ).

  Why aeroplanes are White ? To watch video in hindi, click on the link👇👇 https://youtu.be/mW40Vw_vITI Because It reflects Heat. Because It's Cheaper.  To easily spots damaged planes.

  aesaKyu? 03 Why are danger signals red in colour? • As λ r  ( wavelength of red light),  is largest in the visible region,  therefore Red  colour is least scattered.  Hence it  can be seen from large distances. that is why danger signals are red.

  Why Chips packets filled with air/gases ? Nitrogen.  Because:—  Nitrogen is an inert gase and is used during the packaging process to exclude and remove air and in particular,  Oxygen.   Oxygen is Highly  reactive, so this mean it likes to combine with other molecules,  which result in Food spoiling or losing it's Freshness

  Why is the sky Blue? Ans:— ↪️  Gases and dust particles in earth's atmosphere scatter sunlight in all the directions.  because of shorter wavelengths of Blue   light is more strongly scattered  than the longer wavelengths light red or green, According to rayleigh law of scattering  ●Sun emits more Blue as compare to the violet light. ●Also our eyes is more sensitive to the Blue light. Hence The sky is Blue.