lilakumari000017Q Asked: January 2023 43. Give reason for the following observation :The smell of hot sizzling food reaches us even from a considerable distance but
lilakumari000017Q Asked: January 2023 033 which of the following diffeuses fastest and which theslowestsolid liquid gas
lilakumari000017Q Asked: January 2023 41 (a) When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in theentire room.
lilakumari000017Q Asked: January 2023 45 explain why when a bottle of perfume is opened in a room we can smell it even from a considerabledistance
lilakumari000017Q Asked: January 2023 46 when a crystal of copper sulphate to placed at the bottom of a beaker containing water the water slowlymms blue why
lilakumari000017Q Asked: January 2023 2. (a) What does the diffusion of gases tell us about their particles ?(b) Give one example of diffusion of gases in
lilakumari000017Q Asked: January 2023 state two characteristics properties each of a a solid ba liquid ca gas
lilakumari000017Q Asked: January 2023 explain why the diffusion of a solid in another solid is a very slow process
lilakumari000017Q Asked: January 2023 39. Arrange the following substances in increasing order of force of attraction between their particles (keepingthe substance having the minimum force of attraction first):Water,
lilakumari000017Q Asked: January 2023 1 give two reasons to justify thata water is a liquid at room temperatureb an iron almirah is a solid
lilakumari000017Q Asked: January 2023 honey is more viscous than water can you suggest why 63be0afbccb16
lilakumari000017Q Asked: December 2022 when a crystal of potassium permanganate is placed in a beaker, its purple colour spreads throughout the water. what does this observation tell us about
lilakumari000017Q Asked: December 2022 30 explain why we can easily move our hand in air but to do the same through a plank of wood we need akarate expert
lilakumari000017Q Asked: December 2022 29 describe in your own words what happens to the particles when salt dissolves in water
lilakumari000017Q Asked: December 2022 state two characteristics of matter demonstrated bya diffusion b brownian motion
lilakumari000017Q Asked: December 2022 name the scientists who studied the movement of pollen grains suspended in water through a microscope what is this phenomenon known as
lilakumari000017Q Asked: December 2022 when a gas jar containing air is inverted over a gas containing bromine vapour, the red-brown bromine vapour diffuse into air .explain how bromine vapour
lilakumari000017Q Asked: December 2022 31 give one example of the diffusion of a solid in another solid