Osmotic pressure is widely used to determine molar masses of proteins and polymers. Two…
Chemistry · Class 12 · CBSE — Solutions
Osmotic pressure is widely used to determine molar masses of proteins and polymers. Two solutions having same osmotic pressure are called isotonic solutions. Water can flow in or out from a substance depending on if it is kept in hypotonic or hypertonic solutions. The direction of the osmosis can be reversed if a pressure larger than osmotic pressure is applied on solution side.
The preservation of meat by salting and of fruits by adding sugar protects them from bacterial action because
- bacteria die of eating sugar or salt
- due to osmosis bacteria lose water on salted meat or candid fruit and die
- due to osmosis bacteria gain water on salted meat or candid fruit and die
- bacteria get stuck to the salt and sugar layers and die.
Answer
(B) due to osmosis bacteria lose water on salted meat or candid fruit and die
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