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Concentration of alcohol in a sugar solu...

Concentration of alcohol in a sugar solution inoculated with yeast after which yeast gets killed is

A

0.13

B

0.25

C

0.3

D

0.2

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The correct Answer is:
A
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A solution which remains in equilibrium with undissolved solute is said to be saturated. The concentration of a saturated solution at a given temperature is called solubility. The product of concentration of ions in a saturated solution of an electrolyte at a given temperature, is called solubility product (K_(sp)) . For the electrolyte, A_(x),B_(y),:A_(x),B_(y(s)) rarr xA^(y+)+ y^(Bx-) , with solubility S, the solubility product (K_(sp)) =x^(x)xxy^(y) xx s^(x+y) . While calculating the solubility of a sparingly soluble salt in the presence of some strong electrolyte containing a common ion, the common ion concentration is practically equal to that of strong electrolyte. If in a solution, the ionic product of an clectrolyte exceeds its K_(sp) , value at a particular temperature, then precipitation occurs. The solubility of PbSO_(4) , in water is 0.303 g/l at 25^(@) C, its solubility product at that temperature is

The concentration of sulphide ion in 0.1M HCl solution saturated with hydrogen sulphide is 1.0xx10^(-19)M . If 10mL of this is added to 5mL of 0.04M solution of the following : FeSO_(4) , MnCl_(2) , ZnCl_(2) and CdCl_(2) .in which of these solutions precipitation will take place ?

Which of the following solution is more concentrated

Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Ag is precipitated from an aqueous solution of sodium argentocynide by adding

Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Which of the following statements about electrolytic refining of silver is not true

Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Leaching of Ag_(2)S is carried out by heating it with a dilute solution of

Micelles are formed from concentrated soap solutions above critical micelle concentration. Micelles are regarded as associate colloids as soap ions associate to give micelles. Which of the following give a positive micelle ?

By which scale concentration of hydrogen ion in a solution is measured ?

There are certain substances which behave as normal, strong electrolytes at low concentration but at higher concentration they behave as colloidal solution due to the formation of aggregated particles. Such colloids are called associated colloids and the aggregated particles are called micelles. Soaps anddetergents are the examples of associated colloids. The formation of micelles takes place above certain concentration called critical micellization concentration (CMC) and a characteristic temperature called Kraft temperature (T_k) . What type of molecules form micelles

AAKASH SERIES-RESPIRATION IN PLANTS-Exercise-II
  1. Facultative anaerobes

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  2. Maximum energy can be obtained from oxidation of which respiratory su...

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  3. Concentration of alcohol in a sugar solution inoculated with yeast aft...

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  4. Cramps are formed during vigrous exercise, it is due to production of ...

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  5. Identify the product marked by i) & ii) in the following pathway

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  6. Pasteurization is a process, which means heating of drinks. It is carr...

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  7. Identify the enzymes 1 and 2 in the given reaction and select the corr...

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  8. Select the wrong statement with respect to glycolysis

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  9. Which of the following steps during glycolysis is associated with unt...

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  10. Which of the following conversions involve ATP synthesis during glycol...

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  11. Fate of pyruvic acid during aerobic respiration is

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  12. Identify A and B in the given reaction. Pyruvic acid +CoA+NAD^(+) u...

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  13. Substrate level phosphorylation occurs during which step of Kreb's cy...

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  14. The first 5-C dicarboxylic acid in Kreb's cycle which is used in nitro...

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  15. Krebs' cycle is also called metabolic sink as it is a common pathway f...

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  16. Seeds respire in

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  17. Phosphorylation of glucose during glycolysis is catalyzed by

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  18. Electron transport system (ETS) is located in mitochondrial

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  19. The end product of oxidative phosphorylation is

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  20. Which of the following statements regarding metabolic pathways is inco...

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