In the case of small cuts, bleeding is s...

In the case of small cuts, bleeding is stopped by applying potash alum. Here alum act as

germicide

coagulating agent

fungicids

disinfectant

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KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|59 Videos
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KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY (MCQ.s)|60 Videos

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Radha and Meera are fast friends. They both study in class XII. Radha is a student of science while Meera follows commerce stream. One day, when they were playing, Radha got hurt and started Fluiding. Merra took to her house and applied some alum on the cut. The bleeding stopped immediately. (i) Why bleeding stopped when some alum is applied on the cut ? (ii) What are the values associated with Meera's decision to take Radha to her house and apply alum on her cut ?

Which of the following statements is not true about potash alum ?

A house wife while working in the kitchen get a cut on the finger. It started bleeding and become panic. She immediately called her neighbour. She had kept ferric chloride in her house. She immediately applied it on the affected area and the bleeding stopped. (i) What is the chemical formula of ferric chloride ? (ii) Why did bleeding stop on applying it on the affected finger? (iii) What is the name of the phenomenon involved ? (iv) What is the value associated with this from the point of view of chemist?

Ferric chloride is applied to stop bleeding because

Calculate the percentage composition of: Alumina (Al_(2) O_(3) , potassium oxide (K_(2) O) , and silcia (SiO_(2)) in the sample of clay (Al_(2) O_(3). K_(2) O. 6SiO_(2)) . b. Potassium sulphate (K_(2) SO_(4)) . Aluminium sulphate, and water of crystallisation in the simple of potash alum, (K_(2) SO_(4). Al_(2) (SO_(4))_(3). 24H_(2) O) .

Give reason: (i) Potash alum is used in clarification of water. (ii) A solid catalyst is very efficient in the finally divided state. (iii) Lyophilic sols are more stable than lyophobic sols.

Given here are figures of a few folded sheets and designs drawn about the fold. In each case, draw a rough diagram that would be seen when the design is cut off.

Give reason '' Potash alum is used in the clarification of water

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2001-Chemistry

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