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On heating the hydrated salt looses wate...

On heating the hydrated salt looses water molecules present in it. To show this what are equipment required ? and draw a neat diagram.

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1) On heating the hydrated salt looses water molecules present in it.
2) To show this the given equipments are required
1) Boiling tube
2) Test tube holder
3) Burner
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Figure 6.20 shows a metal rod PQ resting on the smooth rails AB and positioned between the poles of a permanent magnet. The rails, the rod, and the magnetic field are in three mutual perpendicular directions. A galvanometer G connects the rails through a switch K. Length of the rod = 15 cm, B = 0.50 T, resistance of the closed loop containing the rod = 9.0 m Omega . Assume the field to be uniform. (a) Suppose K is open and the rod is moved with a speed of 12 cm s^(-1) in the direction shown. Give the polarity and magnitude of the induced emf. (b) Is there an excess charge built up at the ends of the rods when K is open? What if K is closed? (c) With K open and the rod moving uniformly, there is no net force on the electrons in the rod PQ even though they do experience magnetic force due to the motion of the rod. Explain. (d) What is the retarding force on the rod when K is closed? (e) How much power is required (by an external agent) to keep the rod moving at the same speed (=12 cm s^(-1) ) when K is closed? How much power is required when K is open? (f ) How much power is dissipated as heat in the closed circuit? What is the source of this power? (g) What is the induced emf in the moving rod if the magnetic field is parallel to the rails instead of being perpendicular?

VGS PUBLICATION-BRILLIANT-ACIDS, BASES AND SALTS -Section-4
  1. 'Z' is a substance which is used in glass, soap and paper industry. It...

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  2. 'S' is a substance which is used in Orthopedic hospitals and also maki...

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  3. On heating the hydrated salt looses water molecules present in it. To ...

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  4. Observe the chemical equations and answer the following questions. ...

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  5. Observe the chemical equations and answer the following questions. ...

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  6. Observe the chemical equations and answer the following questions. ...

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  7. Observe the chemical equations and answer the following questions. ...

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  8. Name the acid/s.

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  9. Name the base/s.

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  10. Name the weak acid/s

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  11. Name the neutral solution/s.

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  12. Fill the following table of results of reactions between some substanc...

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  13. which of the following is a strong acid?

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  14. From the above picture answer the following Which acid is used in abo...

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  15. From the above picture answer the following Which metal is used in t...

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  16. From the given picture answer the following In the above experiment ...

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  17. Now, answer the following questions Which of the above substances ar...

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  18. Now, answer the following questions Which of the above substance was...

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  19. Now, answer the following questions What will be produced if we add ...

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  20. Now, answer the following questions What is substance 'D' ? Why ?

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