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Excessive nutrient addition, especially ...

Excessive nutrient addition, especially from anthropogenic sources, led to extensive growth of the follow ing need in Kolleru lake

A

Ipomea

B

Eichornia

C

Cyperus

D

Cynodactylon

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Following passage describes charcterstics of colloids. Answer the questions at the end of it. Lyophilic colloidal sols are much more stable than lyophobic colloidal sols. This is due to the extensive solvation of lyophilic colloidal sols, which forms a protective layer outside it and thus prevents it from forming associated colloids. Lyophillic colloidal sols also protect lyophobic colloidal sols from precipition by the action of electrolytes. This is due to formation of a protective layer by lyophilic sols outside lyophobic sols. Lyophilic colloidal sols are called protective sols. Gelatin (lyophilic) protects gold sol (lyophobic) from coagulaion on the addition of sodium chloride solution. Protective powers of different colloidal sols are measured in terms of 'gold number' (Zigmody). It is defined as the amount of protective sol in milligrams that prevents the coagulation of 10 mL of a given gold sol on adding 1 mL of 10 percent sodium chloride. Thus smaller the gold number of a lyophillic sol, the greater is the protective power. [AgI]I^(-) collodial sol can be coagulated by the addition of a suitable cation. 1 mol of [Agl]I^(-) requires mol of AgNO_3, Pb(NO_3)_2 and Fe(NO_3)_3 as

Following passage describes charcterstics of colloids. Answer the questions at the end of it. Lyophilic colloidal sols are much more stable than lyophobic colloidal sols. This is due to the extensive solvation of lyophilic colloidal sols, which forms a protective layer outside it and thus prevents it from forming associated colloids. Lyophillic colloidal sols also protect lyophobic colloidal sols from precipition by the action of electrolytes. This is due to formation of a protective layer by lyophilic sols outside lyophobic sols. Lyophilic colloidal sols are called protective sols. Gelatin (lyophilic) protects gold sol (lyophobic) from coagulaion on the addition of sodium chloride solution. Protective powers of different colloidal sols are measured in terms of 'gold number' (Zigmody). It is defined as the amount of protective sol in milligrams that prevents the coagulation of 10 mL of a given gold sol on adding 1 mL of 10 percent sodium chloride. Thus smaller the gold number of a lyophillic sol, the greater is the protective power. Gold number of haemoglobin is 0.03. Hence, 10 mL of gold sol will require haemoglobin so that gold is not coagulated by ImL of 10% NaCl solution

Following passage describes charcterstics of colloids. Answer the questions at the end of it. Lyophilic colloidal sols are much more stable than lyophobic colloidal sols. This is due to the extensive solvation of lyophilic colloidal sols, which forms a protective layer outside it and thus prevents it from forming associated colloids. Lyophillic colloidal sols also protect lyophobic colloidal sols from precipition by the action of electrolytes. This is due to formation of a protective layer by lyophilic sols outside lyophobic sols. Lyophilic colloidal sols are called protective sols. Gelatin (lyophilic) protects gold sol (lyophobic) from coagulaion on the addition of sodium chloride solution. Protective powers of different colloidal sols are measured in terms of 'gold number' (Zigmody). It is defined as the amount of protective sol in milligrams that prevents the coagulation of 10 mL of a given gold sol on adding 1 mL of 10 percent sodium chloride. Thus smaller the gold number of a lyophillic sol, the greater is the protective power. 0.025g of starch sol is required to prevent coagulation of 10ml gold sol when ImL of 10% Nacl solution is present. What is gold number of starch sol

VGS PUBLICATION-BRILLIANT-OUR ENVIRONMENT-EXERCISE
  1. Between october and march how many birds visit kolleru every year?

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  2. The length of twisty channel upputeru which connects Kolleru lake with...

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  3. Excessive nutrient addition, especially from anthropogenic sources, le...

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  4. What are the water-borne disease common among the inhabitains of lake ...

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  5. Draw a flow chart to describe the process of bioaccumulation and bio m...

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  6. Which one of the following diseases in not due to contamination of wat...

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  7. Name the metal which was bioaccumulated in liver, gills and kidney of ...

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  8. The bio accumulation of heavy metals into human being through food cau...

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  9. Minamata diseases was caused by release of ………….. in industrial waste ...

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  10. Read the passage People started trapping, posoning and killing sparro...

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  11. Fossil fuels are formed by Anaerobic decomposition of buried

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  12. In a school, students thought of planting trees in an around the schoo...

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  13. The primary consumer is....

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  14. Consumers are divided based on the factors given bel,ow in an ecosyste...

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  15. Kolleru lake dischares its water into the Bay of Bengal through the .....

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  16. The cruel campaign against which bird is initiated in 1958 in china?

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  17. What are the abiotic factors of ecosystem?

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  18. Observe the following a and b statements : The number of organisms dec...

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  19. The bio accumulation of heavy metals into human being through food cau...

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  20. Match the following {:("List-I","LIst-II"),((A)NO(3)^(-)" ion in d...

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