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Seeds of some plants are unable to germi...

Seeds of some plants are unable to germinate even when conditions are favorable. This is called:

A

Dormancy

B

Quiescence

C

Vivipary

D

Non-viability

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Read the given passage and answers following questions : The particles of colloidal solution possess electrical charge which is responsible for the stability of these solutions. The charge on colloidal particles arises because of selective adsorption of ions which are common with their own lattice. The presence of charge on colloidal particles can be determined with the help of phenomenon known as electrophoresis. However, when some electrolyte is added, the charge on the particles of, dispersed phase gets neutralized and precipitation takes place. This process is also called coagulation. The coagulation is given by Hardy Schulze rules. According to these rules the ions carrying the charge opposite to that of sol particles are effective and coagulating power of an electrolyte is directly proportional to the fourth power of the valency of the ion. Coagulation can also occur by mutual precipitation , by electrophoresis, by persistent dialysis or by heating or cooling. Answer the following questions : What happens to the charge of particles when electrolyte is added ?

The particles of colloidal solution possess electrical charge which is responsible for the stability of these solutions. The charge on colloidal particles arises because of selective adsorption of ions which are common with their own lattice. The presence of charge on colloidal particles can be determined with the help of phenomenon known as electrophoresis. However, when some electrolyte is added, the charge -on the particles of dispersed phase gets neutralized and precipitation takes place. This process is also called coagulation. The coagulation is given by Hardy Schulze rules. According to these rules the ions carrying the charge opposite to that of sol particles are effective and coagulating power of an electrolyte is directly propdrtional to the fourth power of the valency of the ion. Coagulation can also occur by mutual precipitation, by electrophoresis, by persistent dialysis or by heating or cooling. What happens to the charge of particles when electrolyte is added ?

Read the given passage and answers following questions : The particles of colloidal solution possess electrical charge which is responsible for the stability of these solutions. The charge on colloidal particles arises because of selective adsorption of ions which are common with their own lattice. The presence of charge on colloidal particles can be determined with the help of phenomenon known as electrophoresis. However, when some electrolyte is added, the charge on the particles of, dispersed phase gets neutralized and precipitation takes place. This process is also called coagulation. The coagulation is given by Hardy Schulze rules. According to these rules the ions carrying the charge opposite to that of sol particles are effective and coagulating power of an electrolyte is directly proportional to the fourth power of the valency of the ion. Coagulation can also occur by mutual precipitation , by electrophoresis, by persistent dialysis or by heating or cooling. Answer the following questions : Which electrolyte is most effective for coagulating Fe(OH)3 sol?

Read the given passage and answers following questions : The particles of colloidal solution possess electrical charge which is responsible for the stability of these solutions. The charge on colloidal particles arises because of selective adsorption of ions which are common with their own lattice. The presence of charge on colloidal particles can be determined with the help of phenomenon known as electrophoresis. However, when some electrolyte is added, the charge on the particles of, dispersed phase gets neutralized and precipitation takes place. This process is also called coagulation. The coagulation is given by Hardy Schulze rules. According to these rules the ions carrying the charge opposite to that of sol particles are effective and coagulating power of an electrolyte is directly proportional to the fourth power of the valency of the ion. Coagulation can also occur by mutual precipitation , by electrophoresis, by persistent dialysis or by heating or cooling. Answer the following questions : Name the other ways by which coagulation can occur.

The particles of colloidal solution possess electrical charge which is responsible for the stability of these solutions. The charge on colloidal particles arises because of selective adsorption of ions which are common with their own lattice. The presence of charge on colloidal particles can be determined with the help of phenomenon known as electrophoresis. However, when some electrolyte is added, the charge -on the particles of dispersed phase gets neutralized and precipitation takes place. This process is also called coagulation. The coagulation is given by Hardy Schulze rules. According to these rules the ions carrying the charge opposite to that of sol particles are effective and coagulating power of an electrolyte is directly propdrtional to the fourth power of the valency of the ion. Coagulation can also occur by mutual precipitation, by electrophoresis, by persistent dialysis or by heating or cooling. What is Hardy Schulze rule ?

MODERN PUBLICATION-PLANT GROWTH AND DEVELOPMENT-EXAMPLE
  1. Seeds of some plants are unable to germinate even when conditions are ...

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  2. determinate growth, meristem and growth rate.

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  3. Why is not any one parameter good enough to demonstrate growth through...

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  4. Describe briefly: Arithmetic growth

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  5. Describe briefly: Geometric growth

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  6. Describe briefly: Absolute and relative growth rates

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  7. Describe briefly: Sigmoid growth curve

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  8. List five main groups of natural plant growth regulators. Writea note ...

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  9. What do you understand by photoperiodism and vernalisation? Describe t...

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  10. Why is abscisic acid also known as strress hormone?

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  11. ‘Both growth and differentiation in higher plants are open’. Comment.

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  12. ‘Both a short day plant and a long day plant can produce flower simult...

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  13. Which one of the plant growth regulators would you use,if you are aske...

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  14. Which one of the plant growth regulators would you use,if you are aske...

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  15. Which one of the plant growth regulators would you use,if you are aske...

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  16. Which one of the plant growth regulators would you use,if you are aske...

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  17. Which one of the plant growth regulators would you use,if you are aske...

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  18. Which one of the plant growth regulators would you use,if you are aske...

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  19. Would a defoliated plant respond to photoperiodic cycle? Why?

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  20. What would be expected to happen if: GA3 is applied to rice seedlings

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  21. What would be expected to happen if: dividing cells stop differentia...

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